Hello All!
PROBLEM: USB keyboards works only 4 per PC host port.
I work for project which will use 15 - 25 keyboards for children teaching.
I discover current Linux 2.6.22 , 2.6.24, 2.6.26 dot not support more
than 4 keyboards per single PC host port. All plugged in keyboards
are listed as USB devices, listed as input devices, but capable to
send input events are only 4 keyboards, no matter where keyboards
are plugged in to HUB cascade. All plugged in keyboards switch LED's,
when i press NumLock.
I tested various usb-hub units and various host PC hardware, i even
replace hub power supplay units from 5V1A to 5V3A. All tested cases
give best results - 4 keyboards per PC host port and worstest - some PC
cannot do more than 8 keyboards at all.
I suppose this is Linux kernel bug because i test keyboards under
Windows, which support any schema of cascading of usb hubs.
I will send any log file if that is necessary, but trouble will pop up
in a row of kernels. 2.6.22 didn't have error messages. 2.6.24, 2.6.26
tend to total slow down with eternal reset messages:
Jul 25 07:16:00 awork kernel: input,hiddev97: USB HID v1.10 Mouse
[USB-compliant keyboard] on usb-0000:00:1d.0-1.1.2
Jul 25 07:16:01 awork kernel: usb 2-1.1.1: reset low speed USB device using
uhci_hcd and address 17
Jul 25 07:16:01 awork kernel: usb 2-1.1.2: reset low speed USB device using
uhci_hcd and address 18
Jul 25 07:16:02 awork kernel: usb 2-1.1.1: reset low speed USB device using
uhci_hcd and address 17
Best regards,
Aivils Stoss
Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> I suppose this is Linux kernel bug because i test keyboards under
> Windows, which support any schema of cascading of usb hubs.
On the very same machine and hubs?
Samuel
On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > I suppose this is Linux kernel bug because i test keyboards under
> > Windows, which support any schema of cascading of usb hubs.
>
> On the very same machine and hubs?
Yes, on same machine. Under Windows i don't have evdev interface,
checked only how keypress go to console.
Of course to repeat a try You must have at least 5 keyboards and
1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
got result - 5th, 6th, 7th keyboard does not send events to console
or evdev.
>
> Samuel
On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote:
> On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > > I suppose this is Linux kernel bug because i test keyboards under
> > > Windows, which support any schema of cascading of usb hubs.
> >
> > On the very same machine and hubs?
>
> Yes, on same machine. Under Windows i don't have evdev interface,
> checked only how keypress go to console.
> Of course to repeat a try You must have at least 5 keyboards and
> 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
> got result - 5th, 6th, 7th keyboard does not send events to console
> or evdev.
[adding linux-usb mailing list]
Hi,
I finally got 5 USB keyboards together along with 2 hubs.
I daisy-chained the hubs and connected 1 keyboard to the hub that is
on the notebook computer USB port, then I connected 4 keyboards to the
second hub. They all worked for me, meaning that I can type on all of
them and have their characters show up on my console.
I'm testing with 2.6.7-rc2.
'usbtree' output of the USB subsystem is attached.
---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
On Friday 15 August 2008 7:19:48 am Randy Dunlap wrote:
> On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote:
> > On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> > > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > > > I suppose this is Linux kernel bug because i test keyboards under
> > > > Windows, which support any schema of cascading of usb hubs.
> > >
> > > On the very same machine and hubs?
> >
> > Yes, on same machine. Under Windows i don't have evdev interface,
> > checked only how keypress go to console.
> > Of course to repeat a try You must have at least 5 keyboards and
> > 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
> > got result - 5th, 6th, 7th keyboard does not send events to console
> > or evdev.
>
> [adding linux-usb mailing list]
>
> Hi,
>
> I finally got 5 USB keyboards together along with 2 hubs.
> I daisy-chained the hubs and connected 1 keyboard to the hub that is
> on the notebook computer USB port, then I connected 4 keyboards to the
> second hub. They all worked for me, meaning that I can type on all of
> them and have their characters show up on my console.
>
> I'm testing with 2.6.7-rc2.
> 'usbtree' output of the USB subsystem is attached.
Yeah! 2.6.7 is a bit obsolete. At my end 2.6.15 support more than 4
keyboards per PC port , but mess up input when is plugged more than
9 keyboards. 10th is capable to send keypress events, but last pressed
key will be repeated until ctrl-c . 10th keyboard disturb an auto repeat of
all keyboards.
Aivils
>
>
> ---
> ~Randy
> Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
> http://linuxplumbersconf.org/
On Mon, 18 Aug 2008 16:42:49 +0530 Aivils Stoss wrote:
> On Friday 15 August 2008 7:19:48 am Randy Dunlap wrote:
> > On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote:
> > > On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> > > > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > > > > I suppose this is Linux kernel bug because i test keyboards under
> > > > > Windows, which support any schema of cascading of usb hubs.
> > > >
> > > > On the very same machine and hubs?
> > >
> > > Yes, on same machine. Under Windows i don't have evdev interface,
> > > checked only how keypress go to console.
> > > Of course to repeat a try You must have at least 5 keyboards and
> > > 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
> > > got result - 5th, 6th, 7th keyboard does not send events to console
> > > or evdev.
> >
> > [adding linux-usb mailing list]
> >
> > Hi,
> >
> > I finally got 5 USB keyboards together along with 2 hubs.
> > I daisy-chained the hubs and connected 1 keyboard to the hub that is
> > on the notebook computer USB port, then I connected 4 keyboards to the
> > second hub. They all worked for me, meaning that I can type on all of
> > them and have their characters show up on my console.
> >
> > I'm testing with 2.6.7-rc2.
> > 'usbtree' output of the USB subsystem is attached.
>
> Yeah! 2.6.7 is a bit obsolete. At my end 2.6.15 support more than 4
> keyboards per PC port , but mess up input when is plugged more than
> 9 keyboards. 10th is capable to send keypress events, but last pressed
> key will be repeated until ctrl-c . 10th keyboard disturb an auto repeat of
> all keyboards.
Sorry, my keyboard made a typo. I'm testing with 2.6.27-rc2.
So the problem is now different from your original report, right?
What speed is the host port that the keyboards are connected to?
Could it be a USB bus bandwidth limitation? (not that any code
checks for that)
I barely found 5 USB keyboards, so I surely can't test 10 or more. ;)
I suppose that it will take some USB debug messages to attempt to see
what is going on...
---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
On Mon, 18 Aug 2008, Aivils Stoss wrote:
>> I finally got 5 USB keyboards together along with 2 hubs. I
>> daisy-chained the hubs and connected 1 keyboard to the hub that is on
>> the notebook computer USB port, then I connected 4 keyboards to the
>> second hub. They all worked for me, meaning that I can type on all of
>> them and have their characters show up on my console.
>> I'm testing with 2.6.7-rc2. 'usbtree' output of the USB subsystem is
>> attached.
> Yeah! 2.6.7 is a bit obsolete.
I think that Randy really meant 2.6.27-rc2.
> At my end 2.6.15 support more than 4 keyboards per PC port , but mess up
> input when is plugged more than 9 keyboards. 10th is capable to send
> keypress events, but last pressed key will be repeated until ctrl-c .
> 10th keyboard disturb an auto repeat of all keyboards.
Could you please verify with any more recent kernel than 2.6.15 and report
back whether the issue is still present, please?
Also, is this bug specific to USB keyboards? i.e. if you for example plug
in USB flash sticks instead of keyboards, do they all work correctly?
Thanks,
--
Jiri Kosina
SUSE Labs
On Monday 18 August 2008 8:44:32 pm Randy Dunlap wrote:
> On Mon, 18 Aug 2008 16:42:49 +0530 Aivils Stoss wrote:
> > On Friday 15 August 2008 7:19:48 am Randy Dunlap wrote:
> > > On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote:
> > > > On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> > > > > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > > > > > I suppose this is Linux kernel bug because i test keyboards under
> > > > > > Windows, which support any schema of cascading of usb hubs.
> > > > >
> > > > > On the very same machine and hubs?
> > > >
> > > > Yes, on same machine. Under Windows i don't have evdev interface,
> > > > checked only how keypress go to console.
> > > > Of course to repeat a try You must have at least 5 keyboards and
> > > > 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
> > > > got result - 5th, 6th, 7th keyboard does not send events to console
> > > > or evdev.
> > >
> > > [adding linux-usb mailing list]
> > >
> > > Hi,
> > >
> > > I finally got 5 USB keyboards together along with 2 hubs.
> > > I daisy-chained the hubs and connected 1 keyboard to the hub that is
> > > on the notebook computer USB port, then I connected 4 keyboards to the
> > > second hub. They all worked for me, meaning that I can type on all of
> > > them and have their characters show up on my console.
> > >
> > > I'm testing with 2.6.7-rc2.
> > > 'usbtree' output of the USB subsystem is attached.
> >
> > Yeah! 2.6.7 is a bit obsolete. At my end 2.6.15 support more than 4
> > keyboards per PC port , but mess up input when is plugged more than
> > 9 keyboards. 10th is capable to send keypress events, but last pressed
> > key will be repeated until ctrl-c . 10th keyboard disturb an auto repeat
> > of all keyboards.
>
> Sorry, my keyboard made a typo. I'm testing with 2.6.27-rc2.
>
> So the problem is now different from your original report, right?
No problem is same. Older kernels have another troubles.
2.6.22-1-mepis-smp
Quite stable. Have oops sometime inside evdev. Support up to 16
USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
each hub. Any hub cascade support only 4 keyboards, where 5th or more
is registered but don't send input events. Oops inside evdev , when
USB keyboard unplugged. No slow down even all USB keyboards does
not work properly. My be this one support more than 16 keyboards, but
i don't have PC USB ports enough.
2.6.24-7
4 keyboards per port. If plug in 5th tend to total slow down with this one:
usb 2-1.1.1: reset low speed USB device using
uhci_hcd and address 17
5th - means 5th keyboard in USB hub's cascade, which is plugged into
single PC USB port.
2.6.26
4 keyboards per port. If plug in 5th tend to total slow down.
2.6.27-rc3
Sorry Randy i cannot repeat Your achievement. This worse of all tested
kernels. I got working 3 USB keyboards, when i plug in 4th, all keyboards,
include PS/2 stop working. Kernel does not hung up. I can reach box
via net. dmesg , /proc/bus/input/devices attached. lsusb hung up.
Please notify me , if i should use 2.6.27-rc2 !
Aivils
>
>
> What speed is the host port that the keyboards are connected to?
> Could it be a USB bus bandwidth limitation? (not that any code
> checks for that)
>
> I barely found 5 USB keyboards, so I surely can't test 10 or more. ;)
> I suppose that it will take some USB debug messages to attempt to see
> what is going on...
>
>
> ---
> ~Randy
> Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
> http://linuxplumbersconf.org/
On Tue, 19 Aug 2008, Aivils Stoss wrote:
> No problem is same. Older kernels have another troubles.
> 2.6.22-1-mepis-smp
> Quite stable. Have oops sometime inside evdev. Support up to 16
> USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
> each hub. Any hub cascade support only 4 keyboards, where 5th or more
> is registered but don't send input events. Oops inside evdev , when
> USB keyboard unplugged. No slow down even all USB keyboards does
> not work properly. My be this one support more than 16 keyboards, but
> i don't have PC USB ports enough.
>
> 2.6.24-7
> 4 keyboards per port. If plug in 5th tend to total slow down with this one:
> usb 2-1.1.1: reset low speed USB device using
> uhci_hcd and address 17
> 5th - means 5th keyboard in USB hub's cascade, which is plugged into
> single PC USB port.
>
> 2.6.26
> 4 keyboards per port. If plug in 5th tend to total slow down.
>
> 2.6.27-rc3
> Sorry Randy i cannot repeat Your achievement. This worse of all tested
> kernels. I got working 3 USB keyboards, when i plug in 4th, all keyboards,
> include PS/2 stop working. Kernel does not hung up. I can reach box
> via net. dmesg , /proc/bus/input/devices attached. lsusb hung up.
Have you tried looking in your system log for error messages indicating
the source of the problem?
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
input: USB HID v1.10 Device [CHESEN USB Keyboard] on usb-0000:00:1d.1-2.2.4
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
Those messages seem pretty clear. Each keyboard requires two interrupt
transfers occupying 118 us of bandwidth apiece. That's 236 us per
keyboard.
Since there is only 900 us total available for interrupt transfers in
any frame, and since uhci-hcd isn't smart enough to allocate different
interrupt endpoints to different frames, you run out of bandwidth after
four keyboards.
Now if you plugged some of these keyboards into different UHCI
controllers on the computer, then the problem wouldn't arise. Each of
your four UHCI controllers has two ports. So without using any hubs at
all, you can plug 8 keyboards into the computer and they will all work.
If you use some extra hubs as well then you can plug four keyboards
into each controller, allowing you to use 16 keyboards total.
Alan Stern
On Tue, 19 Aug 2008 15:27:06 +0530 Aivils Stoss wrote:
> On Monday 18 August 2008 8:44:32 pm Randy Dunlap wrote:
> > On Mon, 18 Aug 2008 16:42:49 +0530 Aivils Stoss wrote:
> > > On Friday 15 August 2008 7:19:48 am Randy Dunlap wrote:
> > > > On Sun, 10 Aug 2008 04:08:37 +0100 Aivils Stoss wrote:
> > > > > On Saturday 09 August 2008 11:42:26 am Samuel Thibault wrote:
> > > > > > Aivils Stoss, le Fri 08 Aug 2008 07:02:24 +0100, a ?crit :
> > > > > > > I suppose this is Linux kernel bug because i test keyboards under
> > > > > > > Windows, which support any schema of cascading of usb hubs.
> > > > > >
> > > > > > On the very same machine and hubs?
> > > > >
> > > > > Yes, on same machine. Under Windows i don't have evdev interface,
> > > > > checked only how keypress go to console.
> > > > > Of course to repeat a try You must have at least 5 keyboards and
> > > > > 1 7-port or 2 4-port hubs and kernel 2.6.22 and above. I allways
> > > > > got result - 5th, 6th, 7th keyboard does not send events to console
> > > > > or evdev.
> > > >
> > > > [adding linux-usb mailing list]
> > > >
> > > > Hi,
> > > >
> > > > I finally got 5 USB keyboards together along with 2 hubs.
> > > > I daisy-chained the hubs and connected 1 keyboard to the hub that is
> > > > on the notebook computer USB port, then I connected 4 keyboards to the
> > > > second hub. They all worked for me, meaning that I can type on all of
> > > > them and have their characters show up on my console.
> > > >
> > > > I'm testing with 2.6.7-rc2.
> > > > 'usbtree' output of the USB subsystem is attached.
> > >
> > > Yeah! 2.6.7 is a bit obsolete. At my end 2.6.15 support more than 4
> > > keyboards per PC port , but mess up input when is plugged more than
> > > 9 keyboards. 10th is capable to send keypress events, but last pressed
> > > key will be repeated until ctrl-c . 10th keyboard disturb an auto repeat
> > > of all keyboards.
> >
> > Sorry, my keyboard made a typo. I'm testing with 2.6.27-rc2.
> >
> > So the problem is now different from your original report, right?
>
> No problem is same. Older kernels have another troubles.
> 2.6.22-1-mepis-smp
> Quite stable. Have oops sometime inside evdev. Support up to 16
> USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
> each hub. Any hub cascade support only 4 keyboards, where 5th or more
> is registered but don't send input events. Oops inside evdev , when
> USB keyboard unplugged. No slow down even all USB keyboards does
> not work properly. My be this one support more than 16 keyboards, but
> i don't have PC USB ports enough.
Has the evdev oops been reported and/or fixed?
I think that we would prefer to fix that soonish.
> 2.6.24-7
> 4 keyboards per port. If plug in 5th tend to total slow down with this one:
> usb 2-1.1.1: reset low speed USB device using
> uhci_hcd and address 17
> 5th - means 5th keyboard in USB hub's cascade, which is plugged into
> single PC USB port.
>
> 2.6.26
> 4 keyboards per port. If plug in 5th tend to total slow down.
>
> 2.6.27-rc3
> Sorry Randy i cannot repeat Your achievement. This worse of all tested
> kernels. I got working 3 USB keyboards, when i plug in 4th, all keyboards,
> include PS/2 stop working. Kernel does not hung up. I can reach box
> via net. dmesg , /proc/bus/input/devices attached. lsusb hung up.
Please try to include full dmesg (kernel boot log) in the future.
This was was truncated at the front (early messages).
> Please notify me , if i should use 2.6.27-rc2 !
It doesn't seem preferable for you yet.
Looks like it could be a problem just to put N low-speed devices on one root hub/port:
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
uhci_hcd 0000:00:1d.1: bandwidth allocation failed: period 8, phase 4, 826 + 118 us
etc etc.
Alan (Stern), could you look at this one, please?
> Aivils
>
> >
> >
> > What speed is the host port that the keyboards are connected to?
> > Could it be a USB bus bandwidth limitation? (not that any code
> > checks for that)
> >
> > I barely found 5 USB keyboards, so I surely can't test 10 or more. ;)
> > I suppose that it will take some USB debug messages to attempt to see
> > what is going on...
---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
On Tue, 19 Aug 2008, Randy Dunlap wrote:
> > 2.6.22-1-mepis-smp
> > Quite stable. Have oops sometime inside evdev. Support up to 16
> > USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
> > each hub. Any hub cascade support only 4 keyboards, where 5th or more
> > is registered but don't send input events. Oops inside evdev , when
> > USB keyboard unplugged. No slow down even all USB keyboards does
> > not work properly. My be this one support more than 16 keyboards, but
> > i don't have PC USB ports enough.
> Has the evdev oops been reported and/or fixed? I think that we would
> prefer to fix that soonish.
We haven't seen the respective oops yet, or have I missed it?
I'd bet it is fixed in newer kernels by patches that introduce proper
locking into evdev code.
--
Jiri Kosina
SUSE Labs
I have to apologize for my limited knowledge, but mere ignorance never yet
kept a teacher quiet. I am trying to follow this discussion because
Aivils and I are basically trying to do the same thing. In my case I am
presently running 20 keyboards on a 2.6.26 kernel, using an EHCI
controller, and they all work fine.
If I understand your analysis, Aivils' problem is because the UHCI
controllers are too slow. (I just happened to get lucky with another
controller.) I am left with two questions.
1. What if Aivils needs more than 16 keyboards? (Standard class sizes
here in California run from 20 to about 30.) Is there any way he can do
this without a faster controller?
2. What does the bandwidth limitation say about the maximum number of
boards with the EHCI controller? I modified the kernel evdev.c and
input.c files to raise the maximum events from 32 to 64, but I hadn't
figured in the effects of bandwidth.
> Now if you plugged some of these keyboards into different UHCI
> controllers on the computer, then the problem wouldn't arise. Each of
> your four UHCI controllers has two ports. So without using any hubs at
> all, you can plug 8 keyboards into the computer and they will all work.
>
> If you use some extra hubs as well then you can plug four keyboards
> into each controller, allowing you to use 16 keyboards total.
>
> Alan Stern
>
>
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On Tue, Aug 19, 2008 at 05:23:07PM +0200, Jiri Kosina wrote:
> On Tue, 19 Aug 2008, Randy Dunlap wrote:
>
> > > 2.6.22-1-mepis-smp
> > > Quite stable. Have oops sometime inside evdev. Support up to 16
> > > USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
> > > each hub. Any hub cascade support only 4 keyboards, where 5th or more
> > > is registered but don't send input events. Oops inside evdev , when
> > > USB keyboard unplugged. No slow down even all USB keyboards does
> > > not work properly. My be this one support more than 16 keyboards, but
> > > i don't have PC USB ports enough.
> > Has the evdev oops been reported and/or fixed? I think that we would
> > prefer to fix that soonish.
>
> We haven't seen the respective oops yet, or have I missed it?
>
> I'd bet it is fixed in newer kernels by patches that introduce proper
> locking into evdev code.
>
If evdev (or any other part of the input sybsystem) still oopses in
2.6.26 and 2.6.27 I would like to see that oops very much.
--
Dmitry
On Tue, 19 Aug 2008 [email protected] wrote:
> I have to apologize for my limited knowledge, but mere ignorance never yet
> kept a teacher quiet. I am trying to follow this discussion because
> Aivils and I are basically trying to do the same thing. In my case I am
> presently running 20 keyboards on a 2.6.26 kernel, using an EHCI
> controller, and they all work fine.
You must be using some hubs. The results you get will depend on the
type of hub you use.
> If I understand your analysis, Aivils' problem is because the UHCI
> controllers are too slow.
Not just that; it also is a question of scheduling. The uhci-hcd
driver isn't very clever about scheduling, and it tries to put all the
packets into the same frame. If the packets were distributed among
multiple frames then the limit would be considerably higher (eight
times higher in this case).
I'm not sure of the scheduling details in the ohci-hcd driver; they
might well be more flexible than in uhci-hcd. In which case a single
OHCI controller would be able to handle up to 32 of these keyboards,
even though it is no faster than a UHCI controller.
> (I just happened to get lucky with another
> controller.) I am left with two questions.
>
> 1. What if Aivils needs more than 16 keyboards? (Standard class sizes
> here in California run from 20 to about 30.) Is there any way he can do
> this without a faster controller?
You should realize that Aivils _does_ have an EHCI controller. He just
isn't using it, because his hubs are old. So the easiest approach for
him would be to buy USB-2.0 hubs.
If he doesn't want to do that there are a few ways, but they mostly
boil down to getting more controllers. If he is good at kernel
programming, he could upgrade the scheduling algorithm in uhci-hcd --
but that will be a messy job and probably not worth the time spent
(which is why I've never done it).
> 2. What does the bandwidth limitation say about the maximum number of
> boards with the EHCI controller? I modified the kernel evdev.c and
> input.c files to raise the maximum events from 32 to 64, but I hadn't
> figured in the effects of bandwidth.
Like I said above, it depends on the type of hub you use. If you have
hubs with multiple Transaction Translators then the bandwidth limit
will be very high. I don't know how high exactly, but probably higher
than other limits, like the maximum number of USB devices on a single
bus (127).
If you have hubs with only a single Transaction Translator then the
limit will be lower, but still pretty high. Certainly you would be
able to connect no more than four keyboards to each hub, but you could
have many hubs. The details would depend on the scheduling algorithm
in ehci-hcd, which I'm also not familiar with.
If you have only full-speed hubs (i.e., USB-1.1 hubs rather than
USB-2.0) then you won't be able to make use of the EHCI controller at
all. That's the situation Aivils is in.
Alan Stern
--- Alan Stern <[email protected]> wrote:
> On Tue, 19 Aug 2008 [email protected] wrote:
> > If I understand your analysis, Aivils' problem is because the UHCI
> > controllers are too slow.
>
> Not just that; it also is a question of scheduling. The uhci-hcd
> driver isn't very clever about scheduling, and it tries to put all the
> packets into the same frame. If the packets were distributed among
> multiple frames then the limit would be considerably higher (eight
> times higher in this case).
>
> I'm not sure of the scheduling details in the ohci-hcd driver; they
> might well be more flexible than in uhci-hcd. In which case a single
> OHCI controller would be able to handle up to 32 of these keyboards,
> even though it is no faster than a UHCI controller.
The OHCI scheduling is pretty simple and compact. I'd think it would
be easy enough to make UHCI do the same sort of thing: track bandwidth
assigned to 2^N frames (OHCI hardware imposes a smaller limit for N
than UHCI hardware does), and pick the least loaded of those frames to
use for new transfers. In ohci-q.c see balance(), periodic_{,un}link().
Thing is that would involve changing how UHCI manages periodic transfers;
assuming it hasn't changed those structures since last I looked.
On Tue, 19 Aug 2008, David Brownell wrote:
> The OHCI scheduling is pretty simple and compact. I'd think it would
> be easy enough to make UHCI do the same sort of thing: track bandwidth
> assigned to 2^N frames (OHCI hardware imposes a smaller limit for N
> than UHCI hardware does), and pick the least loaded of those frames to
> use for new transfers. In ohci-q.c see balance(), periodic_{,un}link().
>
> Thing is that would involve changing how UHCI manages periodic transfers;
> assuming it hasn't changed those structures since last I looked.
Yes. That's the messy part; the scheduling itself is easy.
Alan Stern
Thanks for the clarification.
John
Thanks for the clarification.
John
On Tuesday 19 August 2008 8:53:07 pm Jiri Kosina wrote:
> On Tue, 19 Aug 2008, Randy Dunlap wrote:
> > > 2.6.22-1-mepis-smp
> > > Quite stable. Have oops sometime inside evdev. Support up to 16
> > > USB keyboards, where 4 hubs are plugged into PC and 4 keyboards on
> > > each hub. Any hub cascade support only 4 keyboards, where 5th or more
> > > is registered but don't send input events. Oops inside evdev , when
> > > USB keyboard unplugged. No slow down even all USB keyboards does
> > > not work properly. My be this one support more than 16 keyboards, but
> > > i don't have PC USB ports enough.
> >
> > Has the evdev oops been reported and/or fixed? I think that we would
> > prefer to fix that soonish.
>
> We haven't seen the respective oops yet, or have I missed it?
>
> I'd bet it is fixed in newer kernels by patches that introduce proper
> locking into evdev code.
I don't know exists this one in the 2.6.26 and above :o(
Aivils Stoss
# cat /proc/version
Linux version 2.6.22-1-mepis-smp (root@mepis-pro) (gcc version 4.1.2 20061115
(prerelease) (Debian 4.1.1-21)) #1 SMP PREEMPT Sun Dec 2 19:15:40 EST 2007
# dmesg
input: CHESEN USB Keyboard as /class/input/input41
input: USB HID v1.10 Device [CHESEN USB Keyboard] on usb-0000:00:1d.3-2.4.4
hub 5-0:1.0: port 2 disabled by hub (EMI?), re-enabling...
usb 5-2: USB disconnect, address 8
usb 5-2.1: USB disconnect, address 14
usb 5-2.1.2: USB disconnect, address 23
BUG: unable to handle kernel paging request at virtual address 00100100
printing eip:
f8832664
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: i915 drm evdev binfmt_misc cpufreq_ondemand
cpufreq_userspace cpufreq_powersave acpi_cpufreq speedstep_lib freq_table
rfcomm hidp l2cap bluetooth ppdev lp thermal fan button processor ac battery
ipv6 snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul
snd_emu10k1 snd_util_mem snd_hwdep piix ide_core fuse ndiswrapper dm_crypt
dm_snapshot dm_mirror dm_mod usbhid hid sworks_agp amd_k7_agp ali_agp sis_agp
ati_agp nvidia_agp via_agp wlan_scan_sta ath_rate_sample snd_emu10k1x
snd_seq_dummy snd_seq_oss snd_seq_midi snd_seq_midi_event snd_seq snd_rawmidi
snd_seq_device snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd
soundcore intel_agp agpgart ac97_bus i2c_i801 i2c_core snd_page_alloc
parport_pc parport floppy ath_pci wlan ath_hal(P) serio_raw psmouse uhci_hcd
atl2 pcspkr
CPU: 0
EIP: 0060:[<f8832664>] Tainted: P VLI
EFLAGS: 00010206 (2.6.22-1-mepis-smp #1)
EIP is at evdev_disconnect+0x73/0xb1 [evdev]
eax: 00000000 ebx: 000ffcf0 ecx: f73d5540 edx: 01329000
esi: f6c31340 edi: cf00c000 ebp: d2a56800 esp: c1a59e48
ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
Process khubd (pid: 168, ti=c1a58000 task=c1aaf030 task.ti=c1a58000)
Stack: c368c800 c368c800 c368cecc c0321be7 00000000 c048f02c c18de420 d2a56800
f6f98ba0 cf00cc58 f8a51354 caf8501c caf85000 cf00c000 f8a4129d d2a56800
d2a56818 f8a45dc0 e4ef2800 c030715f 00000000 d2a56818 f8a45df4 00000000
Call Trace:
[<c0321be7>] input_unregister_device+0x67/0xfc
[<f8a51354>] hidinput_disconnect+0x2e/0x47 [hid]
[<f8a4129d>] hid_disconnect+0x70/0xc1 [usbhid]
[<c030715f>] usb_unbind_interface+0x44/0x85
[<c02b16a4>] __device_release_driver+0x71/0x8e
[<c02b1a2c>] device_release_driver+0x1e/0x34
[<c02b108e>] bus_remove_device+0x5e/0x6c
[<c02afb7d>] device_del+0x1a4/0x218
[<c0304c75>] usb_disable_device+0x5c/0xbb
[<c0301773>] usb_disconnect+0x83/0x11b
[<c0301761>] usb_disconnect+0x71/0x11b
[<c0301761>] usb_disconnect+0x71/0x11b
[<c0301e5e>] hub_thread+0x365/0xa67
[<c0392677>] __sched_text_start+0x6f7/0x793
[<c0133e60>] autoremove_wake_function+0x0/0x35
[<c0301af9>] hub_thread+0x0/0xa67
[<c0133d93>] kthread+0x38/0x5d
[<c0133d5b>] kthread+0x0/0x5d
[<c01049d7>] kernel_thread_helper+0x7/0x10
=======================
Code: e8 07 e4 ae c7 8b 5e 54 eb 1b 8d 83 08 04 00 00 b9 06 00 02 00 ba 1d 00
00 00 e8 40 11 94 c7 8b 9b 10 04 00 00 81 eb 10 04 00 00 <8b> 83 10 04 00 00
0f 18 00 90 8d 93 10 04 00 00 8d 46 54 39 c2
EIP: [<f8832664>] evdev_disconnect+0x73/0xb1 [evdev] SS:ESP 0068:c1a59e48
hid-debug: input LED.CapsLock = 1
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 1
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 1
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 1
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 1
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 0
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 0
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 0
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 0
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
hid-debug: input LED.CapsLock = 0
/home/aivils/works/kernel/hid/usbhid/hid-core.c: usb_submit_urb(ctrl) failed
# cat /proc/modules
i915 21120 2 - Live 0xf8d13000
drm 67092 3 i915, Live 0xf8d21000
evdev 7936 5 - Live 0xf8832000
binfmt_misc 9224 1 - Live 0xf8cc5000
cpufreq_ondemand 7436 2 - Live 0xf8cb0000
cpufreq_userspace 4256 0 - Live 0xf8cb3000
cpufreq_powersave 2560 0 - Live 0xf8c10000
acpi_cpufreq 7624 0 - Live 0xf8c92000
speedstep_lib 4740 0 - Live 0xf8cad000
freq_table 4512 2 cpufreq_ondemand,acpi_cpufreq, Live 0xf8c95000
rfcomm 31256 0 - Live 0xf8cb8000
hidp 15232 2 - Live 0xf8c86000
l2cap 19712 10 rfcomm,hidp, Live 0xf8c9a000
bluetooth 42724 5 rfcomm,hidp,l2cap, Live 0xf8ca1000
ppdev 7684 0 - Live 0xf8c8f000
lp 9476 0 - Live 0xf8c8b000
thermal 11784 0 - Live 0xf8c1a000
fan 4612 0 - Live 0xf8c21000
button 7056 0 - Live 0xf8c1e000
processor 25928 2 acpi_cpufreq,thermal, Live 0xf8c12000
ac 4740 0 - Live 0xf8bfc000
battery 9220 0 - Live 0xf8bf8000
ipv6 217380 12 - Live 0xf8cc9000
snd_emu10k1_synth 6784 0 - Live 0xf8bf5000
snd_emux_synth 29568 1 snd_emu10k1_synth, Live 0xf8bff000
snd_seq_virmidi 6144 1 snd_emux_synth, Live 0xf8bf2000
snd_seq_midi_emul 6016 1 snd_emux_synth, Live 0xf8a7d000
snd_emu10k1 119232 1 snd_emu10k1_synth, Live 0xf8c67000
snd_util_mem 4352 2 snd_emux_synth,snd_emu10k1, Live 0xf8a7a000
snd_hwdep 7556 2 snd_emux_synth,snd_emu10k1, Live 0xf8a77000
piix 8708 0 [permanent], Live 0xf8a66000
ide_core 100036 1 piix, Live 0xf8c4d000
fuse 36756 1 - Live 0xf89f6000
ndiswrapper 162396 0 - Live 0xf8c24000
dm_crypt 11272 0 - Live 0xf884f000
dm_snapshot 14888 0 - Live 0xf8a5c000
dm_mirror 18304 0 - Live 0xf8a48000
dm_mod 43840 3 dm_crypt,dm_snapshot,dm_mirror, Live 0xf8a6b000
usbhid 22240 0 - Live 0xf8a41000
hid 41344 2 hidp,usbhid, Live 0xf8a50000
sworks_agp 8096 0 - Live 0xf89f3000
amd_k7_agp 7436 0 - Live 0xf89f0000
ali_agp 6144 0 - Live 0xf89d3000
sis_agp 7556 0 - Live 0xf89d0000
ati_agp 7564 0 - Live 0xf89cd000
nvidia_agp 7068 0 - Live 0xf89ca000
via_agp 8960 0 - Live 0xf882e000
wlan_scan_sta 11776 1 - Live 0xf89c6000
ath_rate_sample 11776 1 - Live 0xf8959000
snd_emu10k1x 15268 0 - Live 0xf8991000
snd_seq_dummy 3844 0 - Live 0xf8960000
snd_seq_oss 28800 0 - Live 0xf8996000
snd_seq_midi 6944 0 - Live 0xf897c000
snd_seq_midi_event 6656 3 snd_seq_virmidi,snd_seq_oss,snd_seq_midi, Live
0xf895d000
snd_seq 42576 9
snd_emux_synth,snd_seq_virmidi,snd_seq_midi_emul,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event,
Live 0xf89ba000
snd_rawmidi 18208 4 snd_seq_virmidi,snd_emu10k1,snd_emu10k1x,snd_seq_midi,
Live 0xf8856000
snd_seq_device 7308 8
snd_emu10k1_synth,snd_emux_synth,snd_emu10k1,snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi,
Live 0xf88f1000
snd_ac97_codec 90788 2 snd_emu10k1,snd_emu10k1x, Live 0xf89d8000
snd_pcm_oss 34976 0 - Live 0xf89b0000
snd_mixer_oss 14592 1 snd_pcm_oss, Live 0xf8977000
snd_pcm 62084 4 snd_emu10k1,snd_emu10k1x,snd_ac97_codec,snd_pcm_oss, Live
0xf899f000
snd_timer 17668 3 snd_emu10k1,snd_seq,snd_pcm, Live 0xf8971000
snd 41316 15
snd_emux_synth,snd_seq_virmidi,snd_emu10k1,snd_hwdep,snd_emu10k1x,snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,
Live 0xf897f000
soundcore 6880 1 snd, Live 0xf887d000
intel_agp 21012 1 - Live 0xf896a000
agpgart 25804 10
drm,sworks_agp,amd_k7_agp,ali_agp,sis_agp,ati_agp,nvidia_agp,via_agp,intel_agp,
Live 0xf8962000
ac97_bus 3072 1 snd_ac97_codec, Live 0xf8866000
i2c_i801 8208 0 - Live 0xf8860000
i2c_core 19456 1 i2c_i801, Live 0xf8877000
snd_page_alloc 8328 3 snd_emu10k1,snd_emu10k1x,snd_pcm, Live 0xf885c000
parport_pc 30116 1 - Live 0xf8950000
parport 29512 3 ppdev,lp,parport_pc, Live 0xf88d6000
floppy 50052 0 - Live 0xf8869000
ath_pci 81440 0 - Live 0xf88c1000
wlan 170180 4 wlan_scan_sta,ath_rate_sample,ath_pci, Live 0xf8925000
ath_hal 190544 3 ath_rate_sample,ath_pci, Live 0xf88f5000 (P)
serio_raw 6020 0 - Live 0xf8853000
psmouse 34320 0 - Live 0xf8837000
uhci_hcd 20364 0 - Live 0xf8849000
atl2 24216 0 - Live 0xf8842000
pcspkr 3456 0 - Live 0xf8835000
# objdump -D evdev.ko
evdev.ko: file format elf32-i386
Disassembly of section .text:
00000000 <evdev_poll>:
0: 57 push %edi
1: 56 push %esi
2: 53 push %ebx
3: 89 d3 mov %edx,%ebx
5: 8b b0 80 00 00 00 mov 0x80(%eax),%esi
b: 85 db test %ebx,%ebx
d: 8b be 0c 04 00 00 mov 0x40c(%esi),%edi
13: 8d 57 40 lea 0x40(%edi),%edx
16: 74 08 je 20 <evdev_poll+0x20>
18: 85 d2 test %edx,%edx
1a: 74 04 je 20 <evdev_poll+0x20>
1c: 89 d9 mov %ebx,%ecx
1e: ff 13 call *(%ebx)
20: 8b 96 00 04 00 00 mov 0x400(%esi),%edx
26: 31 c0 xor %eax,%eax
28: 3b 96 04 04 00 00 cmp 0x404(%esi),%edx
2e: ba 41 00 00 00 mov $0x41,%edx
33: 5b pop %ebx
34: 0f 45 c2 cmovne %edx,%eax
37: 83 3f 01 cmpl $0x1,(%edi)
3a: 5e pop %esi
3b: 19 d2 sbb %edx,%edx
3d: 5f pop %edi
3e: 83 e2 18 and $0x18,%edx
41: 09 d0 or %edx,%eax
43: c3 ret
00000044 <evdev_fasync>:
44: 53 push %ebx
45: 83 ec 04 sub $0x4,%esp
48: 8b 9a 80 00 00 00 mov 0x80(%edx),%ebx
4e: 81 c3 08 04 00 00 add $0x408,%ebx
54: 89 1c 24 mov %ebx,(%esp)
57: e8 fc ff ff ff call 58 <evdev_fasync+0x14>
5c: 89 c2 mov %eax,%edx
5e: 31 c0 xor %eax,%eax
60: 85 d2 test %edx,%edx
62: 0f 4e c2 cmovle %edx,%eax
65: 5a pop %edx
66: 5b pop %ebx
67: c3 ret
00000068 <evdev_free>:
68: 8b 50 08 mov 0x8(%eax),%edx
6b: c7 04 95 00 00 00 00 movl $0x0,0x0(,%edx,4)
72: 00 00 00 00
76: e9 fc ff ff ff jmp 77 <evdev_free+0xf>
0000007b <evdev_flush>:
7b: 89 c2 mov %eax,%edx
7d: 8b 80 80 00 00 00 mov 0x80(%eax),%eax
83: 8b 80 0c 04 00 00 mov 0x40c(%eax),%eax
89: 83 38 00 cmpl $0x0,(%eax)
8c: 74 08 je 96 <evdev_flush+0x1b>
8e: 83 c0 1c add $0x1c,%eax
91: e9 fc ff ff ff jmp 92 <evdev_flush+0x17>
96: b8 ed ff ff ff mov $0xffffffed,%eax
9b: c3 ret
0000009c <str_to_user>:
9c: 57 push %edi
9d: 85 c0 test %eax,%eax
9f: 56 push %esi
a0: bf fe ff ff ff mov $0xfffffffe,%edi
a5: 53 push %ebx
a6: 89 ce mov %ecx,%esi
a8: 89 c3 mov %eax,%ebx
aa: 74 29 je d5 <str_to_user+0x39>
ac: 31 c0 xor %eax,%eax
ae: 83 c9 ff or $0xffffffff,%ecx
b1: 89 df mov %ebx,%edi
b3: f2 ae repnz scas %es:(%edi),%al
b5: f7 d1 not %ecx
b7: 49 dec %ecx
b8: 8d 79 01 lea 0x1(%ecx),%edi
bb: 89 f0 mov %esi,%eax
bd: 39 d7 cmp %edx,%edi
bf: 0f 47 fa cmova %edx,%edi
c2: 89 da mov %ebx,%edx
c4: 89 f9 mov %edi,%ecx
c6: e8 fc ff ff ff call c7 <str_to_user+0x2b>
cb: 85 c0 test %eax,%eax
cd: b8 f2 ff ff ff mov $0xfffffff2,%eax
d2: 0f 45 f8 cmovne %eax,%edi
d5: 5b pop %ebx
d6: 89 f8 mov %edi,%eax
d8: 5e pop %esi
d9: 5f pop %edi
da: c3 ret
000000db <bits_to_user>:
db: 53 push %ebx
dc: c1 ea 05 shr $0x5,%edx
df: 8d 1c 95 04 00 00 00 lea 0x4(,%edx,4),%ebx
e6: 89 c2 mov %eax,%edx
e8: 8b 44 24 08 mov 0x8(%esp),%eax
ec: 39 cb cmp %ecx,%ebx
ee: 0f 47 d9 cmova %ecx,%ebx
f1: 89 d9 mov %ebx,%ecx
f3: e8 fc ff ff ff call f4 <bits_to_user+0x19>
f8: 85 c0 test %eax,%eax
fa: b8 f2 ff ff ff mov $0xfffffff2,%eax
ff: 0f 45 d8 cmovne %eax,%ebx
102: 89 d8 mov %ebx,%eax
104: 5b pop %ebx
105: c3 ret
00000106 <evdev_ioctl>:
106: 55 push %ebp
107: 57 push %edi
108: 89 cf mov %ecx,%edi
10a: 56 push %esi
10b: 53 push %ebx
10c: 89 d3 mov %edx,%ebx
10e: 83 ec 54 sub $0x54,%esp
111: 89 44 24 08 mov %eax,0x8(%esp)
115: 8b 80 80 00 00 00 mov 0x80(%eax),%eax
11b: 89 44 24 0c mov %eax,0xc(%esp)
11f: 8b a8 0c 04 00 00 mov 0x40c(%eax),%ebp
125: b8 ed ff ff ff mov $0xffffffed,%eax
12a: 83 7d 00 00 cmpl $0x0,0x0(%ebp)
12e: 8b 75 28 mov 0x28(%ebp),%esi
131: 0f 84 b2 04 00 00 je 5e9 <evdev_ioctl+0x4e3>
137: 81 fa 80 45 2c 40 cmp $0x402c4580,%edx
13d: 0f 84 98 01 00 00 je 2db <evdev_ioctl+0x1d5>
143: 77 3c ja 181 <evdev_ioctl+0x7b>
145: 81 fa 90 45 04 40 cmp $0x40044590,%edx
14b: 0f 84 08 02 00 00 je 359 <evdev_ioctl+0x253>
151: 77 11 ja 164 <evdev_ioctl+0x5e>
153: 81 fa 81 45 04 40 cmp $0x40044581,%edx
159: 0f 85 42 02 00 00 jne 3a1 <evdev_ioctl+0x29b>
15f: e9 c0 01 00 00 jmp 324 <evdev_ioctl+0x21e>
164: 81 fa 03 45 08 40 cmp $0x40084503,%edx
16a: 0f 84 9d 00 00 00 je 20d <evdev_ioctl+0x107>
170: 81 fa 04 45 08 40 cmp $0x40084504,%edx
176: 0f 85 25 02 00 00 jne 3a1 <evdev_ioctl+0x29b>
17c: e9 24 01 00 00 jmp 2a5 <evdev_ioctl+0x19f>
181: 81 fa 02 45 08 80 cmp $0x80084502,%edx
187: 74 43 je 1cc <evdev_ioctl+0xc6>
189: 77 19 ja 1a4 <evdev_ioctl+0x9e>
18b: 81 fa 01 45 04 80 cmp $0x80044501,%edx
191: 74 2a je 1bd <evdev_ioctl+0xb7>
193: 81 fa 84 45 04 80 cmp $0x80044584,%edx
199: 0f 85 02 02 00 00 jne 3a1 <evdev_ioctl+0x29b>
19f: e9 92 01 00 00 jmp 336 <evdev_ioctl+0x230>
1a4: 81 fa 03 45 08 80 cmp $0x80084503,%edx
1aa: 74 2d je 1d9 <evdev_ioctl+0xd3>
1ac: 81 fa 04 45 08 80 cmp $0x80084504,%edx
1b2: 0f 85 e9 01 00 00 jne 3a1 <evdev_ioctl+0x29b>
1b8: e9 b4 00 00 00 jmp 271 <evdev_ioctl+0x16b>
1bd: b8 00 00 01 00 mov $0x10000,%eax
1c2: e8 fc ff ff ff call 1c3 <evdev_ioctl+0xbd>
1c7: e9 1d 04 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
1cc: 8d 56 10 lea 0x10(%esi),%edx
1cf: b9 08 00 00 00 mov $0x8,%ecx
1d4: e9 7f 03 00 00 jmp 558 <evdev_ioctl+0x452>
1d9: 8b 46 18 mov 0x18(%esi),%eax
1dc: a9 00 00 10 00 test $0x100000,%eax
1e1: 0f 84 ef 03 00 00 je 5d6 <evdev_ioctl+0x4d0>
1e7: 8b 86 c4 01 00 00 mov 0x1c4(%esi),%eax
1ed: e8 fc ff ff ff call 1ee <evdev_ioctl+0xe8>
1f2: 85 c0 test %eax,%eax
1f4: 0f 85 d5 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
1fa: 8b 86 c8 01 00 00 mov 0x1c8(%esi),%eax
200: 8d 4f 04 lea 0x4(%edi),%ecx
203: e8 fc ff ff ff call 204 <evdev_ioctl+0xfe>
208: e9 52 03 00 00 jmp 55f <evdev_ioctl+0x459>
20d: 8b 46 18 mov 0x18(%esi),%eax
210: a9 00 00 10 00 test $0x100000,%eax
215: 0f 84 bb 03 00 00 je 5d6 <evdev_ioctl+0x4d0>
21b: 89 c8 mov %ecx,%eax
21d: e8 fc ff ff ff call 21e <evdev_ioctl+0x118>
222: 85 c0 test %eax,%eax
224: 89 d1 mov %edx,%ecx
226: 0f 85 a3 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
22c: 8d 47 04 lea 0x4(%edi),%eax
22f: e8 fc ff ff ff call 230 <evdev_ioctl+0x12a>
234: 85 c0 test %eax,%eax
236: 0f 85 93 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
23c: 8d 5d 1c lea 0x1c(%ebp),%ebx
23f: 89 d8 mov %ebx,%eax
241: 89 54 24 50 mov %edx,0x50(%esp)
245: ba 14 00 00 00 mov $0x14,%edx
24a: 89 0c 24 mov %ecx,(%esp)
24d: 31 c9 xor %ecx,%ecx
24f: e8 fc ff ff ff call 250 <evdev_ioctl+0x14a>
254: b9 01 00 00 00 mov $0x1,%ecx
259: ba 14 00 00 00 mov $0x14,%edx
25e: 8b 44 24 50 mov 0x50(%esp),%eax
262: 89 04 24 mov %eax,(%esp)
265: 89 d8 mov %ebx,%eax
267: e8 fc ff ff ff call 268 <evdev_ioctl+0x162>
26c: e9 0e 01 00 00 jmp 37f <evdev_ioctl+0x279>
271: 89 c8 mov %ecx,%eax
273: e8 fc ff ff ff call 274 <evdev_ioctl+0x16e>
278: 85 c0 test %eax,%eax
27a: 0f 85 4f 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
280: 8d 4c 24 50 lea 0x50(%esp),%ecx
284: 89 f0 mov %esi,%eax
286: ff 96 98 00 00 00 call *0x98(%esi)
28c: 85 c0 test %eax,%eax
28e: 0f 85 55 03 00 00 jne 5e9 <evdev_ioctl+0x4e3>
294: 8b 44 24 50 mov 0x50(%esp),%eax
298: 8d 4f 04 lea 0x4(%edi),%ecx
29b: e8 fc ff ff ff call 29c <evdev_ioctl+0x196>
2a0: e9 ba 02 00 00 jmp 55f <evdev_ioctl+0x459>
2a5: 89 c8 mov %ecx,%eax
2a7: e8 fc ff ff ff call 2a8 <evdev_ioctl+0x1a2>
2ac: 85 c0 test %eax,%eax
2ae: 89 d3 mov %edx,%ebx
2b0: 0f 85 19 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
2b6: 8d 41 04 lea 0x4(%ecx),%eax
2b9: e8 fc ff ff ff call 2ba <evdev_ioctl+0x1b4>
2be: 85 c0 test %eax,%eax
2c0: 0f 85 09 03 00 00 jne 5cf <evdev_ioctl+0x4c9>
2c6: 89 d1 mov %edx,%ecx
2c8: 89 f0 mov %esi,%eax
2ca: 89 54 24 50 mov %edx,0x50(%esp)
2ce: 89 da mov %ebx,%edx
2d0: ff 96 94 00 00 00 call *0x94(%esi)
2d6: e9 0e 03 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
2db: 8d 5c 24 10 lea 0x10(%esp),%ebx
2df: b9 2c 00 00 00 mov $0x2c,%ecx
2e4: 89 fa mov %edi,%edx
2e6: 89 d8 mov %ebx,%eax
2e8: e8 fc ff ff ff call 2e9 <evdev_ioctl+0x1e3>
2ed: 85 c0 test %eax,%eax
2ef: 0f 85 da 02 00 00 jne 5cf <evdev_ioctl+0x4c9>
2f5: 8b 4c 24 08 mov 0x8(%esp),%ecx
2f9: 89 da mov %ebx,%edx
2fb: 89 f0 mov %esi,%eax
2fd: e8 fc ff ff ff call 2fe <evdev_ioctl+0x1f8>
302: 8d 4f 02 lea 0x2(%edi),%ecx
305: 66 8b 54 24 12 mov 0x12(%esp),%dx
30a: 89 c3 mov %eax,%ebx
30c: 89 d0 mov %edx,%eax
30e: e8 fc ff ff ff call 30f <evdev_ioctl+0x209>
313: 89 c2 mov %eax,%edx
315: 89 d8 mov %ebx,%eax
317: 85 d2 test %edx,%edx
319: 0f 84 ca 02 00 00 je 5e9 <evdev_ioctl+0x4e3>
31f: e9 ab 02 00 00 jmp 5cf <evdev_ioctl+0x4c9>
324: 8b 4c 24 08 mov 0x8(%esp),%ecx
328: 89 fa mov %edi,%edx
32a: 89 f0 mov %esi,%eax
32c: e8 fc ff ff ff call 32d <evdev_ioctl+0x227>
331: e9 b3 02 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
336: 8b 46 18 mov 0x18(%esi),%eax
339: 31 d2 xor %edx,%edx
33b: a9 00 00 20 00 test $0x200000,%eax
340: 74 09 je 34b <evdev_ioctl+0x245>
342: 8b 86 9c 00 00 00 mov 0x9c(%esi),%eax
348: 8b 50 40 mov 0x40(%eax),%edx
34b: 89 d0 mov %edx,%eax
34d: 89 f9 mov %edi,%ecx
34f: e8 fc ff ff ff call 350 <evdev_ioctl+0x24a>
354: e9 06 02 00 00 jmp 55f <evdev_ioctl+0x459>
359: 85 c9 test %ecx,%ecx
35b: 8b 45 50 mov 0x50(%ebp),%eax
35e: 74 26 je 386 <evdev_ioctl+0x280>
360: 85 c0 test %eax,%eax
362: 0f 85 75 02 00 00 jne 5dd <evdev_ioctl+0x4d7>
368: 8d 45 1c lea 0x1c(%ebp),%eax
36b: e8 fc ff ff ff call 36c <evdev_ioctl+0x266>
370: 85 c0 test %eax,%eax
372: 0f 85 65 02 00 00 jne 5dd <evdev_ioctl+0x4d7>
378: 8b 44 24 0c mov 0xc(%esp),%eax
37c: 89 45 50 mov %eax,0x50(%ebp)
37f: 31 c0 xor %eax,%eax
381: e9 63 02 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
386: 3b 44 24 0c cmp 0xc(%esp),%eax
38a: 0f 85 54 02 00 00 jne 5e4 <evdev_ioctl+0x4de>
390: 8d 45 1c lea 0x1c(%ebp),%eax
393: e8 fc ff ff ff call 394 <evdev_ioctl+0x28e>
398: c7 45 50 00 00 00 00 movl $0x0,0x50(%ebp)
39f: eb de jmp 37f <evdev_ioctl+0x279>
3a1: 0f b6 c7 movzbl %bh,%eax
3a4: 83 f8 45 cmp $0x45,%eax
3a7: 0f 85 37 02 00 00 jne 5e4 <evdev_ioctl+0x4de>
3ad: 89 d8 mov %ebx,%eax
3af: c1 e8 1e shr $0x1e,%eax
3b2: 83 f8 02 cmp $0x2,%eax
3b5: 0f 85 ae 01 00 00 jne 569 <evdev_ioctl+0x463>
3bb: 89 d8 mov %ebx,%eax
3bd: 25 e0 00 00 00 and $0xe0,%eax
3c2: 83 f8 20 cmp $0x20,%eax
3c5: 75 79 jne 440 <evdev_ioctl+0x33a>
3c7: 89 d8 mov %ebx,%eax
3c9: 83 e0 1f and $0x1f,%eax
3cc: 83 f8 15 cmp $0x15,%eax
3cf: 0f 87 0f 02 00 00 ja 5e4 <evdev_ioctl+0x4de>
3d5: ff 24 85 00 00 00 00 jmp *0x0(,%eax,4)
3dc: 8d 46 18 lea 0x18(%esi),%eax
3df: ba 1f 00 00 00 mov $0x1f,%edx
3e4: eb 42 jmp 428 <evdev_ioctl+0x322>
3e6: 8d 46 1c lea 0x1c(%esi),%eax
3e9: ba ff 01 00 00 mov $0x1ff,%edx
3ee: eb 38 jmp 428 <evdev_ioctl+0x322>
3f0: 8d 46 5c lea 0x5c(%esi),%eax
3f3: eb 2e jmp 423 <evdev_ioctl+0x31d>
3f5: 8d 46 60 lea 0x60(%esi),%eax
3f8: ba 3f 00 00 00 mov $0x3f,%edx
3fd: eb 29 jmp 428 <evdev_ioctl+0x322>
3ff: 8d 46 68 lea 0x68(%esi),%eax
402: eb 08 jmp 40c <evdev_ioctl+0x306>
404: 8d 46 6c lea 0x6c(%esi),%eax
407: eb 1a jmp 423 <evdev_ioctl+0x31d>
409: 8d 46 70 lea 0x70(%esi),%eax
40c: ba 07 00 00 00 mov $0x7,%edx
411: eb 15 jmp 428 <evdev_ioctl+0x322>
413: 8d 46 74 lea 0x74(%esi),%eax
416: ba 7f 00 00 00 mov $0x7f,%edx
41b: eb 0b jmp 428 <evdev_ioctl+0x322>
41d: 8d 86 84 00 00 00 lea 0x84(%esi),%eax
423: ba 0f 00 00 00 mov $0xf,%edx
428: c1 eb 10 shr $0x10,%ebx
42b: 81 e3 ff 3f 00 00 and $0x3fff,%ebx
431: 89 d9 mov %ebx,%ecx
433: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
43a: 00
43b: 89 3c 24 mov %edi,(%esp)
43e: eb 29 jmp 469 <evdev_ioctl+0x363>
440: 0f b6 c3 movzbl %bl,%eax
443: 83 f8 18 cmp $0x18,%eax
446: 75 2b jne 473 <evdev_ioctl+0x36d>
448: c1 eb 10 shr $0x10,%ebx
44b: ba ff 01 00 00 mov $0x1ff,%edx
450: 81 e3 ff 3f 00 00 and $0x3fff,%ebx
456: 8d 86 cc 01 00 00 lea 0x1cc(%esi),%eax
45c: 89 d9 mov %ebx,%ecx
45e: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
465: 00
466: 89 3c 24 mov %edi,(%esp)
469: e8 6d fc ff ff call db <bits_to_user>
46e: e9 76 01 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
473: 83 f8 19 cmp $0x19,%eax
476: 75 08 jne 480 <evdev_ioctl+0x37a>
478: 8d 86 0c 02 00 00 lea 0x20c(%esi),%eax
47e: eb 33 jmp 4b3 <evdev_ioctl+0x3ad>
480: 83 f8 1a cmp $0x1a,%eax
483: 75 23 jne 4a8 <evdev_ioctl+0x3a2>
485: c1 eb 10 shr $0x10,%ebx
488: ba 07 00 00 00 mov $0x7,%edx
48d: 81 e3 ff 3f 00 00 and $0x3fff,%ebx
493: 8d 86 10 02 00 00 lea 0x210(%esi),%eax
499: 89 d9 mov %ebx,%ecx
49b: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
4a2: 00
4a3: 89 3c 24 mov %edi,(%esp)
4a6: eb c1 jmp 469 <evdev_ioctl+0x363>
4a8: 83 f8 1b cmp $0x1b,%eax
4ab: 75 23 jne 4d0 <evdev_ioctl+0x3ca>
4ad: 8d 86 14 02 00 00 lea 0x214(%esi),%eax
4b3: c1 eb 10 shr $0x10,%ebx
4b6: ba 0f 00 00 00 mov $0xf,%edx
4bb: 81 e3 ff 3f 00 00 and $0x3fff,%ebx
4c1: 89 d9 mov %ebx,%ecx
4c3: c7 44 24 04 00 00 00 movl $0x0,0x4(%esp)
4ca: 00
4cb: 89 3c 24 mov %edi,(%esp)
4ce: eb 99 jmp 469 <evdev_ioctl+0x363>
4d0: 83 f8 06 cmp $0x6,%eax
4d3: 75 05 jne 4da <evdev_ioctl+0x3d4>
4d5: 8b 46 04 mov 0x4(%esi),%eax
4d8: eb 12 jmp 4ec <evdev_ioctl+0x3e6>
4da: 83 f8 07 cmp $0x7,%eax
4dd: 75 05 jne 4e4 <evdev_ioctl+0x3de>
4df: 8b 46 08 mov 0x8(%esi),%eax
4e2: eb 08 jmp 4ec <evdev_ioctl+0x3e6>
4e4: 83 f8 08 cmp $0x8,%eax
4e7: 75 1a jne 503 <evdev_ioctl+0x3fd>
4e9: 8b 46 0c mov 0xc(%esi),%eax
4ec: c1 eb 10 shr $0x10,%ebx
4ef: 89 f9 mov %edi,%ecx
4f1: 81 e3 ff 3f 00 00 and $0x3fff,%ebx
4f7: 89 da mov %ebx,%edx
4f9: e8 9e fb ff ff call 9c <str_to_user>
4fe: e9 e6 00 00 00 jmp 5e9 <evdev_ioctl+0x4e3>
503: 89 d8 mov %ebx,%eax
505: 25 c0 00 00 00 and $0xc0,%eax
50a: 83 f8 40 cmp $0x40,%eax
50d: 0f 85 d1 00 00 00 jne 5e4 <evdev_ioctl+0x4de>
513: 89 da mov %ebx,%edx
515: b9 14 00 00 00 mov $0x14,%ecx
51a: 83 e2 3f and $0x3f,%edx
51d: 8b 84 96 c4 00 00 00 mov 0xc4(%esi,%edx,4),%eax
524: 89 44 24 3c mov %eax,0x3c(%esp)
528: 8b 84 96 18 03 00 00 mov 0x318(%esi,%edx,4),%eax
52f: 89 44 24 40 mov %eax,0x40(%esp)
533: 8b 84 96 18 02 00 00 mov 0x218(%esi,%edx,4),%eax
53a: 89 44 24 44 mov %eax,0x44(%esp)
53e: 8b 84 96 18 04 00 00 mov 0x418(%esi,%edx,4),%eax
545: 89 44 24 48 mov %eax,0x48(%esp)
549: 8b 84 96 18 05 00 00 mov 0x518(%esi,%edx,4),%eax
550: 8d 54 24 3c lea 0x3c(%esp),%edx
554: 89 44 24 4c mov %eax,0x4c(%esp)
558: 89 f8 mov %edi,%eax
55a: e8 fc ff ff ff call 55b <evdev_ioctl+0x455>
55f: 85 c0 test %eax,%eax
561: 0f 84 18 fe ff ff je 37f <evdev_ioctl+0x279>
567: eb 66 jmp 5cf <evdev_ioctl+0x4c9>
569: 48 dec %eax
56a: 75 78 jne 5e4 <evdev_ioctl+0x4de>
56c: 89 d8 mov %ebx,%eax
56e: 25 c0 00 00 00 and $0xc0,%eax
573: 3d c0 00 00 00 cmp $0xc0,%eax
578: 75 6a jne 5e4 <evdev_ioctl+0x4de>
57a: 8d 44 24 3c lea 0x3c(%esp),%eax
57e: b9 14 00 00 00 mov $0x14,%ecx
583: 89 fa mov %edi,%edx
585: e8 fc ff ff ff call 586 <evdev_ioctl+0x480>
58a: 85 c0 test %eax,%eax
58c: 75 41 jne 5cf <evdev_ioctl+0x4c9>
58e: 8b 44 24 3c mov 0x3c(%esp),%eax
592: 89 da mov %ebx,%edx
594: 83 e2 3f and $0x3f,%edx
597: 89 84 96 c4 00 00 00 mov %eax,0xc4(%esi,%edx,4)
59e: 8b 44 24 40 mov 0x40(%esp),%eax
5a2: 89 84 96 18 03 00 00 mov %eax,0x318(%esi,%edx,4)
5a9: 8b 44 24 44 mov 0x44(%esp),%eax
5ad: 89 84 96 18 02 00 00 mov %eax,0x218(%esi,%edx,4)
5b4: 8b 44 24 48 mov 0x48(%esp),%eax
5b8: 89 84 96 18 04 00 00 mov %eax,0x418(%esi,%edx,4)
5bf: 8b 44 24 4c mov 0x4c(%esp),%eax
5c3: 89 84 96 18 05 00 00 mov %eax,0x518(%esi,%edx,4)
5ca: e9 b0 fd ff ff jmp 37f <evdev_ioctl+0x279>
5cf: b8 f2 ff ff ff mov $0xfffffff2,%eax
5d4: eb 13 jmp 5e9 <evdev_ioctl+0x4e3>
5d6: b8 da ff ff ff mov $0xffffffda,%eax
5db: eb 0c jmp 5e9 <evdev_ioctl+0x4e3>
5dd: b8 f0 ff ff ff mov $0xfffffff0,%eax
5e2: eb 05 jmp 5e9 <evdev_ioctl+0x4e3>
5e4: b8 ea ff ff ff mov $0xffffffea,%eax
5e9: 83 c4 54 add $0x54,%esp
5ec: 5b pop %ebx
5ed: 5e pop %esi
5ee: 5f pop %edi
5ef: 5d pop %ebp
5f0: c3 ret
000005f1 <evdev_disconnect>:
5f1: 56 push %esi
5f2: 53 push %ebx
5f3: 89 c3 mov %eax,%ebx
5f5: 83 ec 04 sub $0x4,%esp
5f8: 8b 30 mov (%eax),%esi
5fa: e8 fc ff ff ff call 5fb <evdev_disconnect+0xa>
5ff: b8 1c 00 00 00 mov $0x1c,%eax
604: 8d 56 0c lea 0xc(%esi),%edx
607: e8 fc ff ff ff call 608 <evdev_disconnect+0x17>
60c: 8b 56 08 mov 0x8(%esi),%edx
60f: b8 00 00 00 00 mov $0x0,%eax
614: 83 c2 40 add $0x40,%edx
617: 81 ca 00 00 d0 00 or $0xd00000,%edx
61d: e8 fc ff ff ff call 61e <evdev_disconnect+0x2d>
622: 83 7e 04 00 cmpl $0x0,0x4(%esi)
626: c7 06 00 00 00 00 movl $0x0,(%esi)
62c: 74 6a je 698 <evdev_disconnect+0xa7>
62e: 31 d2 xor %edx,%edx
630: 89 d8 mov %ebx,%eax
632: e8 fc ff ff ff call 633 <evdev_disconnect+0x42>
637: 89 d8 mov %ebx,%eax
639: e8 fc ff ff ff call 63a <evdev_disconnect+0x49>
63e: 8b 5e 54 mov 0x54(%esi),%ebx
641: eb 1b jmp 65e <evdev_disconnect+0x6d>
643: 8d 83 08 04 00 00 lea 0x408(%ebx),%eax
649: b9 06 00 02 00 mov $0x20006,%ecx
64e: ba 1d 00 00 00 mov $0x1d,%edx
653: e8 fc ff ff ff call 654 <evdev_disconnect+0x63>
658: 8b 9b 10 04 00 00 mov 0x410(%ebx),%ebx
65e: 81 eb 10 04 00 00 sub $0x410,%ebx
664: 8b 83 10 04 00 00 mov 0x410(%ebx),%eax
66a: 8d 74 26 00 lea 0x0(%esi),%esi
66e: 8d 93 10 04 00 00 lea 0x410(%ebx),%edx
674: 8d 46 54 lea 0x54(%esi),%eax
677: 39 c2 cmp %eax,%edx
679: 75 c8 jne 643 <evdev_disconnect+0x52>
67b: 8d 46 40 lea 0x40(%esi),%eax
67e: b9 01 00 00 00 mov $0x1,%ecx
683: ba 01 00 00 00 mov $0x1,%edx
688: c7 04 24 00 00 00 00 movl $0x0,(%esp)
68f: e8 fc ff ff ff call 690 <evdev_disconnect+0x9f>
694: 5b pop %ebx
695: 5b pop %ebx
696: 5e pop %esi
697: c3 ret
698: 59 pop %ecx
699: 89 f0 mov %esi,%eax
69b: 5b pop %ebx
69c: 5e pop %esi
69d: e9 c6 f9 ff ff jmp 68 <evdev_free>
000006a2 <evdev_connect>:
6a2: 55 push %ebp
6a3: 89 c5 mov %eax,%ebp
6a5: 57 push %edi
6a6: 56 push %esi
6a7: 53 push %ebx
6a8: 83 ec 1c sub $0x1c,%esp
6ab: 89 54 24 14 mov %edx,0x14(%esp)
6af: c7 44 24 18 00 00 00 movl $0x0,0x18(%esp)
6b6: 00
6b7: eb 0b jmp 6c4 <evdev_connect+0x22>
6b9: ff 44 24 18 incl 0x18(%esp)
6bd: 83 7c 24 18 20 cmpl $0x20,0x18(%esp)
6c2: 74 10 je 6d4 <evdev_connect+0x32>
6c4: 8b 44 24 18 mov 0x18(%esp),%eax
6c8: 83 3c 85 00 00 00 00 cmpl $0x0,0x0(,%eax,4)
6cf: 00
6d0: 75 e7 jne 6b9 <evdev_connect+0x17>
6d2: eb 16 jmp 6ea <evdev_connect+0x48>
6d4: c7 04 24 00 00 00 00 movl $0x0,(%esp)
6db: be e9 ff ff ff mov $0xffffffe9,%esi
6e0: e8 fc ff ff ff call 6e1 <evdev_connect+0x3f>
6e5: e9 00 01 00 00 jmp 7ea <evdev_connect+0x148>
6ea: a1 1c 00 00 00 mov 0x1c,%eax
6ef: ba d0 00 00 00 mov $0xd0,%edx
6f4: be f4 ff ff ff mov $0xfffffff4,%esi
6f9: e8 fc ff ff ff call 6fa <evdev_connect+0x58>
6fe: 85 c0 test %eax,%eax
700: 89 c3 mov %eax,%ebx
702: 0f 84 e2 00 00 00 je 7ea <evdev_connect+0x148>
708: 8d 40 54 lea 0x54(%eax),%eax
70b: 89 43 54 mov %eax,0x54(%ebx)
70e: 8d 7b 0c lea 0xc(%ebx),%edi
711: 89 40 04 mov %eax,0x4(%eax)
714: 8d 43 40 lea 0x40(%ebx),%eax
717: e8 fc ff ff ff call 718 <evdev_connect+0x76>
71c: c7 03 01 00 00 00 movl $0x1,(%ebx)
722: 8b 54 24 18 mov 0x18(%esp),%edx
726: 89 53 08 mov %edx,0x8(%ebx)
729: 8b 44 24 14 mov 0x14(%esp),%eax
72d: 89 6b 2c mov %ebp,0x2c(%ebx)
730: 89 7b 24 mov %edi,0x24(%ebx)
733: 89 5b 1c mov %ebx,0x1c(%ebx)
736: 89 43 28 mov %eax,0x28(%ebx)
739: 89 54 24 08 mov %edx,0x8(%esp)
73d: c7 44 24 04 26 00 00 movl $0x26,0x4(%esp)
744: 00
745: 89 3c 24 mov %edi,(%esp)
748: e8 fc ff ff ff call 749 <evdev_connect+0xa7>
74d: 8b 54 24 18 mov 0x18(%esp),%edx
751: 89 7c 24 10 mov %edi,0x10(%esp)
755: 89 1c 95 00 00 00 00 mov %ebx,0x0(,%edx,4)
75c: 89 d5 mov %edx,%ebp
75e: 8b 54 24 14 mov 0x14(%esp),%edx
762: 83 c5 40 add $0x40,%ebp
765: 81 cd 00 00 d0 00 or $0xd00000,%ebp
76b: 8b 82 b0 06 00 00 mov 0x6b0(%edx),%eax
771: 89 6c 24 08 mov %ebp,0x8(%esp)
775: c7 04 24 00 00 00 00 movl $0x0,(%esp)
77c: 89 44 24 0c mov %eax,0xc(%esp)
780: 89 d0 mov %edx,%eax
782: 05 44 06 00 00 add $0x644,%eax
787: 89 44 24 04 mov %eax,0x4(%esp)
78b: e8 fc ff ff ff call 78c <evdev_connect+0xea>
790: 3d 00 f0 ff ff cmp $0xfffff000,%eax
795: 89 c6 mov %eax,%esi
797: 77 3b ja 7d4 <evdev_connect+0x132>
799: 8d 50 08 lea 0x8(%eax),%edx
79c: 89 f9 mov %edi,%ecx
79e: b8 1c 00 00 00 mov $0x1c,%eax
7a3: e8 fc ff ff ff call 7a4 <evdev_connect+0x102>
7a8: 85 c0 test %eax,%eax
7aa: 89 c6 mov %eax,%esi
7ac: 75 1a jne 7c8 <evdev_connect+0x126>
7ae: 8d 43 1c lea 0x1c(%ebx),%eax
7b1: e8 fc ff ff ff call 7b2 <evdev_connect+0x110>
7b6: 85 c0 test %eax,%eax
7b8: 89 c6 mov %eax,%esi
7ba: 74 2e je 7ea <evdev_connect+0x148>
7bc: 89 fa mov %edi,%edx
7be: b8 1c 00 00 00 mov $0x1c,%eax
7c3: e8 fc ff ff ff call 7c4 <evdev_connect+0x122>
7c8: 89 ea mov %ebp,%edx
7ca: b8 00 00 00 00 mov $0x0,%eax
7cf: e8 fc ff ff ff call 7d0 <evdev_connect+0x12e>
7d4: 89 d8 mov %ebx,%eax
7d6: e8 fc ff ff ff call 7d7 <evdev_connect+0x135>
7db: 8b 44 24 18 mov 0x18(%esp),%eax
7df: c7 04 85 00 00 00 00 movl $0x0,0x0(,%eax,4)
7e6: 00 00 00 00
7ea: 83 c4 1c add $0x1c,%esp
7ed: 89 f0 mov %esi,%eax
7ef: 5b pop %ebx
7f0: 5e pop %esi
7f1: 5f pop %edi
7f2: 5d pop %ebp
7f3: c3 ret
000007f4 <evdev_event>:
7f4: 55 push %ebp
7f5: 89 cd mov %ecx,%ebp
7f7: 57 push %edi
7f8: 89 d7 mov %edx,%edi
7fa: 56 push %esi
7fb: 53 push %ebx
7fc: 83 ec 04 sub $0x4,%esp
7ff: 8b 54 24 18 mov 0x18(%esp),%edx
803: 89 14 24 mov %edx,(%esp)
806: 8b 30 mov (%eax),%esi
808: 8b 5e 50 mov 0x50(%esi),%ebx
80b: 85 db test %ebx,%ebx
80d: 74 67 je 876 <evdev_event+0x82>
80f: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
815: c1 e0 04 shl $0x4,%eax
818: 8d 04 03 lea (%ebx,%eax,1),%eax
81b: e8 fc ff ff ff call 81c <evdev_event+0x28>
820: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
826: b9 01 00 02 00 mov $0x20001,%ecx
82b: c1 e0 04 shl $0x4,%eax
82e: 66 89 7c 18 08 mov %di,0x8(%eax,%ebx,1)
833: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
839: c1 e0 04 shl $0x4,%eax
83c: 66 89 6c 18 0a mov %bp,0xa(%eax,%ebx,1)
841: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
847: 8b 14 24 mov (%esp),%edx
84a: c1 e0 04 shl $0x4,%eax
84d: 89 54 18 0c mov %edx,0xc(%eax,%ebx,1)
851: ba 1d 00 00 00 mov $0x1d,%edx
856: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
85c: 40 inc %eax
85d: 83 e0 3f and $0x3f,%eax
860: 89 83 00 04 00 00 mov %eax,0x400(%ebx)
866: 8d 83 08 04 00 00 lea 0x408(%ebx),%eax
86c: e8 fc ff ff ff call 86d <evdev_event+0x79>
871: e9 8e 00 00 00 jmp 904 <evdev_event+0x110>
876: 8b 5e 54 mov 0x54(%esi),%ebx
879: eb 68 jmp 8e3 <evdev_event+0xef>
87b: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
881: c1 e0 04 shl $0x4,%eax
884: 8d 04 03 lea (%ebx,%eax,1),%eax
887: e8 fc ff ff ff call 888 <evdev_event+0x94>
88c: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
892: b9 01 00 02 00 mov $0x20001,%ecx
897: c1 e0 04 shl $0x4,%eax
89a: 66 89 7c 18 08 mov %di,0x8(%eax,%ebx,1)
89f: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
8a5: c1 e0 04 shl $0x4,%eax
8a8: 66 89 6c 18 0a mov %bp,0xa(%eax,%ebx,1)
8ad: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
8b3: 8b 14 24 mov (%esp),%edx
8b6: c1 e0 04 shl $0x4,%eax
8b9: 89 54 18 0c mov %edx,0xc(%eax,%ebx,1)
8bd: ba 1d 00 00 00 mov $0x1d,%edx
8c2: 8b 83 00 04 00 00 mov 0x400(%ebx),%eax
8c8: 40 inc %eax
8c9: 83 e0 3f and $0x3f,%eax
8cc: 89 83 00 04 00 00 mov %eax,0x400(%ebx)
8d2: 8d 83 08 04 00 00 lea 0x408(%ebx),%eax
8d8: e8 fc ff ff ff call 8d9 <evdev_event+0xe5>
8dd: 8b 9b 10 04 00 00 mov 0x410(%ebx),%ebx
8e3: 81 eb 10 04 00 00 sub $0x410,%ebx
8e9: 8b 83 10 04 00 00 mov 0x410(%ebx),%eax
8ef: 8d 74 26 00 lea 0x0(%esi),%esi
8f3: 8d 93 10 04 00 00 lea 0x410(%ebx),%edx
8f9: 8d 46 54 lea 0x54(%esi),%eax
8fc: 39 c2 cmp %eax,%edx
8fe: 0f 85 77 ff ff ff jne 87b <evdev_event+0x87>
904: 8d 46 40 lea 0x40(%esi),%eax
907: b9 01 00 00 00 mov $0x1,%ecx
90c: c7 44 24 18 00 00 00 movl $0x0,0x18(%esp)
913: 00
914: ba 01 00 00 00 mov $0x1,%edx
919: 5e pop %esi
91a: 5b pop %ebx
91b: 5e pop %esi
91c: 5f pop %edi
91d: 5d pop %ebp
91e: e9 fc ff ff ff jmp 91f <evdev_event+0x12b>
00000923 <evdev_release>:
923: 57 push %edi
924: 89 d7 mov %edx,%edi
926: 56 push %esi
927: 53 push %ebx
928: 8b b2 80 00 00 00 mov 0x80(%edx),%esi
92e: 8b 9e 0c 04 00 00 mov 0x40c(%esi),%ebx
934: 39 73 50 cmp %esi,0x50(%ebx)
937: 75 0f jne 948 <evdev_release+0x25>
939: 8d 43 1c lea 0x1c(%ebx),%eax
93c: e8 fc ff ff ff call 93d <evdev_release+0x1a>
941: c7 43 50 00 00 00 00 movl $0x0,0x50(%ebx)
948: 31 c9 xor %ecx,%ecx
94a: 89 fa mov %edi,%edx
94c: 83 c8 ff or $0xffffffff,%eax
94f: e8 f0 f6 ff ff call 44 <evdev_fasync>
954: 8d 8e 10 04 00 00 lea 0x410(%esi),%ecx
95a: 8b 96 10 04 00 00 mov 0x410(%esi),%edx
960: 8b 41 04 mov 0x4(%ecx),%eax
963: 89 42 04 mov %eax,0x4(%edx)
966: 89 10 mov %edx,(%eax)
968: 89 f0 mov %esi,%eax
96a: c7 86 10 04 00 00 00 movl $0x100100,0x410(%esi)
971: 01 10 00
974: c7 41 04 00 02 20 00 movl $0x200200,0x4(%ecx)
97b: e8 fc ff ff ff call 97c <evdev_release+0x59>
980: 8b 43 04 mov 0x4(%ebx),%eax
983: 48 dec %eax
984: 85 c0 test %eax,%eax
986: 89 43 04 mov %eax,0x4(%ebx)
989: 75 16 jne 9a1 <evdev_release+0x7e>
98b: 83 3b 00 cmpl $0x0,(%ebx)
98e: 74 0a je 99a <evdev_release+0x77>
990: 8d 43 1c lea 0x1c(%ebx),%eax
993: e8 fc ff ff ff call 994 <evdev_release+0x71>
998: eb 07 jmp 9a1 <evdev_release+0x7e>
99a: 89 d8 mov %ebx,%eax
99c: e8 c7 f6 ff ff call 68 <evdev_free>
9a1: 5b pop %ebx
9a2: 31 c0 xor %eax,%eax
9a4: 5e pop %esi
9a5: 5f pop %edi
9a6: c3 ret
000009a7 <evdev_write>:
9a7: 55 push %ebp
9a8: 89 cd mov %ecx,%ebp
9aa: 57 push %edi
9ab: 56 push %esi
9ac: be ed ff ff ff mov $0xffffffed,%esi
9b1: 53 push %ebx
9b2: 83 ec 18 sub $0x18,%esp
9b5: 89 54 24 04 mov %edx,0x4(%esp)
9b9: 8b 80 80 00 00 00 mov 0x80(%eax),%eax
9bf: 8b b8 0c 04 00 00 mov 0x40c(%eax),%edi
9c5: 83 3f 00 cmpl $0x0,(%edi)
9c8: 74 47 je a11 <evdev_write+0x6a>
9ca: eb 1f jmp 9eb <evdev_write+0x44>
9cc: 8b 54 24 04 mov 0x4(%esp),%edx
9d0: 8d 44 24 08 lea 0x8(%esp),%eax
9d4: b9 10 00 00 00 mov $0x10,%ecx
9d9: 01 f2 add %esi,%edx
9db: e8 fc ff ff ff call 9dc <evdev_write+0x35>
9e0: 85 c0 test %eax,%eax
9e2: 74 0f je 9f3 <evdev_write+0x4c>
9e4: be f2 ff ff ff mov $0xfffffff2,%esi
9e9: eb 26 jmp a11 <evdev_write+0x6a>
9eb: 31 f6 xor %esi,%esi
9ed: 39 ee cmp %ebp,%esi
9ef: 72 db jb 9cc <evdev_write+0x25>
9f1: eb 1e jmp a11 <evdev_write+0x6a>
9f3: 8b 5c 24 14 mov 0x14(%esp),%ebx
9f7: 8d 47 1c lea 0x1c(%edi),%eax
9fa: 83 c6 10 add $0x10,%esi
9fd: 0f b7 4c 24 12 movzwl 0x12(%esp),%ecx
a02: 0f b7 54 24 10 movzwl 0x10(%esp),%edx
a07: 89 1c 24 mov %ebx,(%esp)
a0a: e8 fc ff ff ff call a0b <evdev_write+0x64>
a0f: eb dc jmp 9ed <evdev_write+0x46>
a11: 83 c4 18 add $0x18,%esp
a14: 89 f0 mov %esi,%eax
a16: 5b pop %ebx
a17: 5e pop %esi
a18: 5f pop %edi
a19: 5d pop %ebp
a1a: c3 ret
00000a1b <evdev_read>:
a1b: 55 push %ebp
a1c: 89 cd mov %ecx,%ebp
a1e: 57 push %edi
a1f: 89 c7 mov %eax,%edi
a21: 56 push %esi
a22: 53 push %ebx
a23: 83 ec 18 sub $0x18,%esp
a26: 83 f9 0f cmp $0xf,%ecx
a29: 89 14 24 mov %edx,(%esp)
a2c: 8b 98 80 00 00 00 mov 0x80(%eax),%ebx
a32: b8 ea ff ff ff mov $0xffffffea,%eax
a37: 8b b3 0c 04 00 00 mov 0x40c(%ebx),%esi
a3d: 0f 86 0e 01 00 00 jbe b51 <evdev_read+0x136>
a43: 8b 83 04 04 00 00 mov 0x404(%ebx),%eax
a49: 39 83 00 04 00 00 cmp %eax,0x400(%ebx)
a4f: 75 14 jne a65 <evdev_read+0x4a>
a51: 83 3e 00 cmpl $0x0,(%esi)
a54: 74 0f je a65 <evdev_read+0x4a>
a56: f6 47 19 08 testb $0x8,0x19(%edi)
a5a: b8 f5 ff ff ff mov $0xfffffff5,%eax
a5f: 0f 85 ec 00 00 00 jne b51 <evdev_read+0x136>
a65: 8b 83 04 04 00 00 mov 0x404(%ebx),%eax
a6b: 39 83 00 04 00 00 cmp %eax,0x400(%ebx)
a71: 75 76 jne ae9 <evdev_read+0xce>
a73: 83 3e 00 cmpl $0x0,(%esi)
a76: 74 71 je ae9 <evdev_read+0xce>
a78: fc cld
a79: 31 c0 xor %eax,%eax
a7b: 8d 7c 24 04 lea 0x4(%esp),%edi
a7f: ab stos %eax,%es:(%edi)
a80: ab stos %eax,%es:(%edi)
a81: ab stos %eax,%es:(%edi)
a82: c7 44 24 0c 00 00 00 movl $0x0,0xc(%esp)
a89: 00
a8a: ab stos %eax,%es:(%edi)
a8b: ab stos %eax,%es:(%edi)
a8c: 64 a1 00 00 00 00 mov %fs:0x0,%eax
a92: 89 44 24 08 mov %eax,0x8(%esp)
a96: 8d 44 24 10 lea 0x10(%esp),%eax
a9a: 89 44 24 10 mov %eax,0x10(%esp)
a9e: 89 44 24 14 mov %eax,0x14(%esp)
aa2: 8d 46 40 lea 0x40(%esi),%eax
aa5: b9 01 00 00 00 mov $0x1,%ecx
aaa: 8d 54 24 04 lea 0x4(%esp),%edx
aae: e8 fc ff ff ff call aaf <evdev_read+0x94>
ab3: 8b 83 04 04 00 00 mov 0x404(%ebx),%eax
ab9: 39 83 00 04 00 00 cmp %eax,0x400(%ebx)
abf: 75 1c jne add <evdev_read+0xc2>
ac1: 83 3e 00 cmpl $0x0,(%esi)
ac4: 74 17 je add <evdev_read+0xc2>
ac6: 64 a1 00 00 00 00 mov %fs:0x0,%eax
acc: 8b 40 04 mov 0x4(%eax),%eax
acf: 8b 40 08 mov 0x8(%eax),%eax
ad2: a8 04 test $0x4,%al
ad4: 75 6a jne b40 <evdev_read+0x125>
ad6: e8 fc ff ff ff call ad7 <evdev_read+0xbc>
adb: eb c5 jmp aa2 <evdev_read+0x87>
add: 8d 46 40 lea 0x40(%esi),%eax
ae0: 8d 54 24 04 lea 0x4(%esp),%edx
ae4: e8 fc ff ff ff call ae5 <evdev_read+0xca>
ae9: 83 3e 00 cmpl $0x0,(%esi)
aec: b8 ed ff ff ff mov $0xffffffed,%eax
af1: 74 5e je b51 <evdev_read+0x136>
af3: eb 1e jmp b13 <evdev_read+0xf8>
af5: 03 04 24 add (%esp),%eax
af8: b9 10 00 00 00 mov $0x10,%ecx
afd: c1 e2 04 shl $0x4,%edx
b00: 8d 14 13 lea (%ebx,%edx,1),%edx
b03: e8 fc ff ff ff call b04 <evdev_read+0xe9>
b08: 85 c0 test %eax,%eax
b0a: 74 20 je b2c <evdev_read+0x111>
b0c: b8 f2 ff ff ff mov $0xfffffff2,%eax
b11: eb 3e jmp b51 <evdev_read+0x136>
b13: 31 c0 xor %eax,%eax
b15: 8b 93 04 04 00 00 mov 0x404(%ebx),%edx
b1b: 39 93 00 04 00 00 cmp %edx,0x400(%ebx)
b21: 74 2e je b51 <evdev_read+0x136>
b23: 8d 70 10 lea 0x10(%eax),%esi
b26: 39 ee cmp %ebp,%esi
b28: 76 cb jbe af5 <evdev_read+0xda>
b2a: eb 25 jmp b51 <evdev_read+0x136>
b2c: 8b 83 04 04 00 00 mov 0x404(%ebx),%eax
b32: 40 inc %eax
b33: 83 e0 3f and $0x3f,%eax
b36: 89 83 04 04 00 00 mov %eax,0x404(%ebx)
b3c: 89 f0 mov %esi,%eax
b3e: eb d5 jmp b15 <evdev_read+0xfa>
b40: 8d 46 40 lea 0x40(%esi),%eax
b43: 8d 54 24 04 lea 0x4(%esp),%edx
b47: e8 fc ff ff ff call b48 <evdev_read+0x12d>
b4c: b8 00 fe ff ff mov $0xfffffe00,%eax
b51: 83 c4 18 add $0x18,%esp
b54: 5b pop %ebx
b55: 5e pop %esi
b56: 5f pop %edi
b57: 5d pop %ebp
b58: c3 ret
00000b59 <evdev_open>:
b59: 55 push %ebp
b5a: 57 push %edi
b5b: 56 push %esi
b5c: 53 push %ebx
b5d: 83 ec 04 sub $0x4,%esp
b60: 89 14 24 mov %edx,(%esp)
b63: 8b 40 34 mov 0x34(%eax),%eax
b66: 25 ff ff 0f 00 and $0xfffff,%eax
b6b: 83 e8 40 sub $0x40,%eax
b6e: 83 f8 1f cmp $0x1f,%eax
b71: 0f 8f a4 00 00 00 jg c1b <evdev_open+0xc2>
b77: 8b 1c 85 00 00 00 00 mov 0x0(,%eax,4),%ebx
b7e: 85 db test %ebx,%ebx
b80: 0f 84 95 00 00 00 je c1b <evdev_open+0xc2>
b86: 83 3b 00 cmpl $0x0,(%ebx)
b89: 0f 84 8c 00 00 00 je c1b <evdev_open+0xc2>
b8f: a1 4c 00 00 00 mov 0x4c,%eax
b94: ba d0 00 00 00 mov $0xd0,%edx
b99: bd f4 ff ff ff mov $0xfffffff4,%ebp
b9e: e8 fc ff ff ff call b9f <evdev_open+0x46>
ba3: 85 c0 test %eax,%eax
ba5: 89 c6 mov %eax,%esi
ba7: 74 77 je c20 <evdev_open+0xc7>
ba9: 89 98 0c 04 00 00 mov %ebx,0x40c(%eax)
baf: 8d b8 10 04 00 00 lea 0x410(%eax),%edi
bb5: 8d 43 54 lea 0x54(%ebx),%eax
bb8: 8b 50 04 mov 0x4(%eax),%edx
bbb: 89 86 10 04 00 00 mov %eax,0x410(%esi)
bc1: 89 78 04 mov %edi,0x4(%eax)
bc4: 89 3a mov %edi,(%edx)
bc6: 89 57 04 mov %edx,0x4(%edi)
bc9: 8b 43 04 mov 0x4(%ebx),%eax
bcc: 40 inc %eax
bcd: 89 43 04 mov %eax,0x4(%ebx)
bd0: 48 dec %eax
bd1: 75 3b jne c0e <evdev_open+0xb5>
bd3: 83 3b 00 cmpl $0x0,(%ebx)
bd6: 74 36 je c0e <evdev_open+0xb5>
bd8: 8d 43 1c lea 0x1c(%ebx),%eax
bdb: e8 fc ff ff ff call bdc <evdev_open+0x83>
be0: 85 c0 test %eax,%eax
be2: 89 c5 mov %eax,%ebp
be4: 74 28 je c0e <evdev_open+0xb5>
be6: 8b 47 04 mov 0x4(%edi),%eax
be9: 8b 96 10 04 00 00 mov 0x410(%esi),%edx
bef: 89 42 04 mov %eax,0x4(%edx)
bf2: 89 10 mov %edx,(%eax)
bf4: 89 f0 mov %esi,%eax
bf6: c7 86 10 04 00 00 00 movl $0x100100,0x410(%esi)
bfd: 01 10 00
c00: c7 47 04 00 02 20 00 movl $0x200200,0x4(%edi)
c07: e8 fc ff ff ff call c08 <evdev_open+0xaf>
c0c: eb 12 jmp c20 <evdev_open+0xc7>
c0e: 8b 04 24 mov (%esp),%eax
c11: 31 ed xor %ebp,%ebp
c13: 89 b0 80 00 00 00 mov %esi,0x80(%eax)
c19: eb 05 jmp c20 <evdev_open+0xc7>
c1b: bd ed ff ff ff mov $0xffffffed,%ebp
c20: 5f pop %edi
c21: 89 e8 mov %ebp,%eax
c23: 5b pop %ebx
c24: 5e pop %esi
c25: 5f pop %edi
c26: 5d pop %ebp
c27: c3 ret
Disassembly of section .exit.text:
00000000 <cleanup_module>:
0: b8 00 00 00 00 mov $0x0,%eax
5: e9 fc ff ff ff jmp 6 <cleanup_module+0x6>
Disassembly of section .altinstr_replacement:
00000000 <.altinstr_replacement>:
0: 0f 18 00 prefetchnta (%eax)
3: 0f 18 00 prefetchnta (%eax)
Disassembly of section .init.text:
00000000 <init_module>:
0: b8 00 00 00 00 mov $0x0,%eax
5: e9 fc ff ff ff jmp 6 <init_module+0x6>
Disassembly of section .rodata:
00000000 <__mod_input_device_table-0x60>:
0: dc 03 faddl (%ebx)
2: 00 00 add %al,(%eax)
4: e6 03 out %al,$0x3
6: 00 00 add %al,(%eax)
8: f0 03 00 lock add (%eax),%eax
b: 00 f5 add %dh,%ch
d: 03 00 add (%eax),%eax
f: 00 ff add %bh,%bh
11: 03 00 add (%eax),%eax
13: 00 1d 04 00 00 e4 add %bl,0xe4000004
19: 05 00 00 e4 05 add $0x5e40000,%eax
1e: 00 00 add %al,(%eax)
20: e4 05 in $0x5,%al
22: 00 00 add %al,(%eax)
24: e4 05 in $0x5,%al
26: 00 00 add %al,(%eax)
28: e4 05 in $0x5,%al
2a: 00 00 add %al,(%eax)
2c: e4 05 in $0x5,%al
2e: 00 00 add %al,(%eax)
30: e4 05 in $0x5,%al
32: 00 00 add %al,(%eax)
34: e4 05 in $0x5,%al
36: 00 00 add %al,(%eax)
38: e4 05 in $0x5,%al
3a: 00 00 add %al,(%eax)
3c: e4 05 in $0x5,%al
3e: 00 00 add %al,(%eax)
40: e4 05 in $0x5,%al
42: 00 00 add %al,(%eax)
44: 04 04 add $0x4,%al
46: 00 00 add %al,(%eax)
48: 09 04 00 or %eax,(%eax,%eax,1)
4b: 00 e4 add %ah,%ah
4d: 05 00 00 e4 05 add $0x5e40000,%eax
52: 00 00 add %al,(%eax)
54: 13 04 00 adc (%eax,%eax,1),%eax
...
00000060 <__mod_input_device_table>:
...
dc: 01 00 add %eax,(%eax)
...
00000160 <evdev_fops>:
...
168: 1b 0a sbb (%edx),%ecx
16a: 00 00 add %al,(%eax)
16c: a7 cmpsl %es:(%edi),%ds:(%esi)
16d: 09 00 or %eax,(%eax)
...
183: 00 06 add %al,(%esi)
185: 01 00 add %eax,(%eax)
...
18f: 00 59 0b add %bl,0xb(%ecx)
192: 00 00 add %al,(%eax)
194: 7b 00 jnp 196 <evdev_fops+0x36>
196: 00 00 add %al,(%eax)
198: 23 09 and (%ecx),%ecx
...
1a2: 00 00 add %al,(%eax)
1a4: 44 inc %esp
...
Disassembly of section .altinstructions:
00000000 <.altinstructions>:
0: 6a 06 push $0x6
2: 00 00 add %al,(%eax)
4: 00 00 add %al,(%eax)
6: 00 00 add %al,(%eax)
8: 19 04 03 sbb %eax,(%ebx,%eax,1)
b: 00 ef add %ch,%bh
d: 08 00 or %al,(%eax)
f: 00 03 add %al,(%ebx)
11: 00 00 add %al,(%eax)
13: 00 19 add %bl,(%ecx)
15: 04 03 add $0x3,%al
Disassembly of section .rodata.str1.1:
00000000 <.rodata.str1.1>:
0: 3c 33 cmp $0x33,%al
2: 3e ds
3: 65 gs
4: 76 64 jbe 6a <evdev_free+0x2>
6: 65 gs
7: 76 3a jbe 43 <__mod_description740+0x3>
9: 20 6e 6f and %ch,0x6f(%esi)
c: 20 6d 6f and %ch,0x6f(%ebp)
f: 72 65 jb 76 <__mod_license741+0xa>
11: 20 66 72 and %ah,0x72(%esi)
14: 65 65 20 65 76 and %ah,%gs:0x76(%ebp)
19: 64 fs
1a: 65 gs
1b: 76 20 jbe 3d <evdev_poll+0x3d>
1d: 64 fs
1e: 65 gs
1f: 76 69 jbe 8a <__mod_vermagic5+0xa>
21: 63 65 73 arpl %sp,0x73(%ebp)
24: 0a 00 or (%eax),%al
26: 65 gs
27: 76 65 jbe 8e <__mod_vermagic5+0xe>
29: 6e outsb %ds:(%esi),(%dx)
2a: 74 25 je 51 <evdev_fasync+0xd>
2c: 64 00 65 76 add %ah,%fs:0x76(%ebp)
30: 64 fs
31: 65 gs
32: 76 00 jbe 34 <evdev_poll+0x34>
Disassembly of section .modinfo:
00000000 <__mod_author739>:
0: 61 popa
1: 75 74 jne 77 <__mod_license741+0xb>
3: 68 6f 72 3d 56 push $0x563d726f
8: 6f outsl %ds:(%esi),(%dx)
9: 6a 74 push $0x74
b: 65 63 68 20 arpl %bp,%gs:0x20(%eax)
f: 50 push %eax
10: 61 popa
11: 76 6c jbe 7f <__mod_license741+0x13>
13: 69 6b 20 3c 76 6f 6a imul $0x6a6f763c,0x20(%ebx),%ebp
1a: 74 65 je 81 <__mod_vermagic5+0x1>
1c: 63 68 40 arpl %bp,0x40(%eax)
1f: 75 63 jne 84 <__mod_vermagic5+0x4>
21: 77 2e ja 51 <__mod_description740+0x11>
23: 63 7a 3e arpl %di,0x3e(%edx)
...
00000040 <__mod_description740>:
40: 64 fs
41: 65 gs
42: 73 63 jae a7 <__mod_vermagic5+0x27>
44: 72 69 jb af <__mod_vermagic5+0x2f>
46: 70 74 jo bc <__module_depends+0x4>
48: 69 6f 6e 3d 49 6e 70 imul $0x706e493d,0x6e(%edi),%ebp
4f: 75 74 jne c5 <__module_depends+0xd>
51: 20 64 72 69 and %ah,0x69(%edx,%esi,2)
55: 76 65 jbe bc <__module_depends+0x4>
57: 72 20 jb 79 <__mod_license741+0xd>
59: 65 gs
5a: 76 65 jbe c1 <__module_depends+0x9>
5c: 6e outsb %ds:(%esi),(%dx)
5d: 74 20 je 7f <__mod_license741+0x13>
5f: 63 68 61 arpl %bp,0x61(%eax)
62: 72 20 jb 84 <__mod_vermagic5+0x4>
64: 64 fs
65: 65 gs
66: 76 69 jbe d1 <__module_depends+0x19>
68: 63 65 73 arpl %sp,0x73(%ebp)
...
0000006c <__mod_license741>:
6c: 6c insb (%dx),%es:(%edi)
6d: 69 63 65 6e 73 65 3d imul $0x3d65736e,0x65(%ebx),%esp
74: 47 inc %edi
75: 50 push %eax
76: 4c dec %esp
...
00000080 <__mod_vermagic5>:
80: 76 65 jbe e7 <__mod_alias22+0x7>
82: 72 6d jb f1 <__mod_alias22+0x11>
84: 61 popa
85: 67 69 63 3d 32 2e 36 addr16 imul $0x2e362e32,61(%bp,%di),%esp
8c: 2e
8d: 32 32 xor (%edx),%dh
8f: 2d 31 2d 6d 65 sub $0x656d2d31,%eax
94: 70 69 jo ff <__mod_alias22+0x1f>
96: 73 2d jae c5 <__module_depends+0xd>
98: 73 6d jae 107 <__mod_alias22+0x27>
9a: 70 20 jo bc <__module_depends+0x4>
9c: 53 push %ebx
9d: 4d dec %ebp
9e: 50 push %eax
9f: 20 70 72 and %dh,0x72(%eax)
a2: 65 gs
a3: 65 gs
a4: 6d insl (%dx),%es:(%edi)
a5: 70 74 jo 11b <evdev_ioctl+0x15>
a7: 20 6d 6f and %ch,0x6f(%ebp)
aa: 64 fs
ab: 5f pop %edi
ac: 75 6e jne 11c <evdev_ioctl+0x16>
ae: 6c insb (%dx),%es:(%edi)
af: 6f outsl %ds:(%esi),(%dx)
b0: 61 popa
b1: 64 20 36 and %dh,%fs:(%esi)
b4: 38 36 cmp %dh,(%esi)
b6: 20 00 and %al,(%eax)
000000b8 <__module_depends>:
b8: 64 fs
b9: 65 gs
ba: 70 65 jo 121 <evdev_ioctl+0x1b>
bc: 6e outsb %ds:(%esi),(%dx)
bd: 64 fs
be: 73 3d jae fd <__mod_alias22+0x1d>
...
000000e0 <__mod_alias22>:
e0: 61 popa
e1: 6c insb (%dx),%es:(%edi)
e2: 69 61 73 3d 69 6e 70 imul $0x706e693d,0x73(%ecx),%esp
e9: 75 74 jne 15f <evdev_ioctl+0x59>
eb: 3a 62 2a cmp 0x2a(%edx),%ah
ee: 76 2a jbe 11a <evdev_ioctl+0x14>
f0: 70 2a jo 11c <evdev_ioctl+0x16>
f2: 65 2a 2d 65 2a 6b 2a sub %gs:0x2a6b2a65,%ch
f9: 72 2a jb 125 <evdev_ioctl+0x1f>
fb: 61 popa
fc: 2a 6d 2a sub 0x2a(%ebp),%ch
ff: 6c insb (%dx),%es:(%edi)
100: 2a 73 2a sub 0x2a(%ebx),%dh
103: 66 data16
104: 2a 77 2a sub 0x2a(%edi),%dh
...
Disassembly of section .data:
00000000 <evdev_handler>:
0: 00 00 add %al,(%eax)
2: 00 00 add %al,(%eax)
4: f4 hlt
5: 07 pop %es
6: 00 00 add %al,(%eax)
8: a2 06 00 00 f1 mov %al,0xf1000006
d: 05 00 00 00 00 add $0x0,%eax
12: 00 00 add %al,(%eax)
14: 60 pusha
15: 01 00 add %eax,(%eax)
17: 00 40 00 add %al,0x0(%eax)
1a: 00 00 add %al,(%eax)
1c: 2e 00 00 add %al,%cs:(%eax)
1f: 00 60 00 add %ah,0x0(%eax)
...
Disassembly of section .gnu.linkonce.this_module:
00000000 <__this_module>:
...
c: 65 gs
d: 76 64 jbe 73 <__this_module+0x73>
f: 65 gs
10: 76 00 jbe 12 <__this_module+0x12>
...
Disassembly of section .bss:
00000000 <evdev_table>:
...
Disassembly of section .comment:
00000000 <.comment>:
0: 00 47 43 add %al,0x43(%edi)
3: 43 inc %ebx
4: 3a 20 cmp (%eax),%ah
6: 28 47 4e sub %al,0x4e(%edi)
9: 55 push %ebp
a: 29 20 sub %esp,(%eax)
c: 34 2e xor $0x2e,%al
e: 31 2e xor %ebp,(%esi)
10: 32 20 xor (%eax),%ah
12: 32 30 xor (%eax),%dh
14: 30 36 xor %dh,(%esi)
16: 31 31 xor %esi,(%ecx)
18: 31 35 20 28 70 72 xor %esi,0x72702820
1e: 65 gs
1f: 72 65 jb 86 <__mod_vermagic5+0x6>
21: 6c insb (%dx),%es:(%edi)
22: 65 gs
23: 61 popa
24: 73 65 jae 8b <__mod_vermagic5+0xb>
26: 29 20 sub %esp,(%eax)
28: 28 44 65 62 sub %al,0x62(%ebp)
2c: 69 61 6e 20 34 2e 31 imul $0x312e3420,0x6e(%ecx),%esp
33: 2e 31 2d 32 31 29 00 xor %ebp,%cs:0x293132
3a: 00 47 43 add %al,0x43(%edi)
3d: 43 inc %ebx
3e: 3a 20 cmp (%eax),%ah
40: 28 47 4e sub %al,0x4e(%edi)
43: 55 push %ebp
44: 29 20 sub %esp,(%eax)
46: 34 2e xor $0x2e,%al
48: 31 2e xor %ebp,(%esi)
4a: 32 20 xor (%eax),%ah
4c: 32 30 xor (%eax),%dh
4e: 30 36 xor %dh,(%esi)
50: 31 31 xor %esi,(%ecx)
52: 31 35 20 28 70 72 xor %esi,0x72702820
58: 65 gs
59: 72 65 jb c0 <__module_depends+0x8>
5b: 6c insb (%dx),%es:(%edi)
5c: 65 gs
5d: 61 popa
5e: 73 65 jae c5 <__module_depends+0xd>
60: 29 20 sub %esp,(%eax)
62: 28 44 65 62 sub %al,0x62(%ebp)
66: 69 61 6e 20 34 2e 31 imul $0x312e3420,0x6e(%ecx),%esp
6d: 2e 31 2d 32 31 29 00 xor %ebp,%cs:0x293132