LinuxLists.cc - hid device not claimed but /dev/input/event exists

2008-02-19 16:39:37

Subject: hid device not claimed but /dev/input/event exists

Bus 001 Device 006: ID 046d:0a07 Logitech, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0x0a07
bcdDevice 0.1e
iManufacturer 1 Logitech
iProduct 2 Z-10 USB Speaker
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 219
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 3 G6 2006/06/21 10:55
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 43
bInCollection 1
baInterfaceNr( 0) 1
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 12
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 1
bSourceID 12
bControlSize 2
bmaControls( 0) 0x41
bmaControls( 0) 0x01
Mute
Automatic Gain
Bass Boost
bmaControls( 1) 0x02
bmaControls( 1) 0x00
Volume
bmaControls( 2) 0x02
bmaControls( 2) 0x00
Volume
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 20
wTerminalType 0x0301 Speaker
bAssocTerminal 0
bSourceID 1
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 12
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 0 Continuous
tLowerSamFreq 6400
tUpperSamFreq 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x0064 1x 100 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 1 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 12
bDelay 0 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 0 Continuous
tLowerSamFreq 6400
tUpperSamFreq 48000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 9
Transfer Type Isochronous
Synch Type Adaptive
Usage Type Data
wMaxPacketSize 0x00c8 1x 200 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x01
Sampling Frequency
bLockDelayUnits 2 Decoded PCM samples
wLockDelay 1 Decoded PCM samples
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 46
Report Descriptor: (length is 46)
Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
(null)
Item(Local ): Usage, data= [ 0x00 ] 0
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Global): Report Count, data= [ 0x08 ] 8
Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
(null)
Item(Local ): Usage, data= [ 0x02 ] 2
(null)
Item(Global): Report ID, data= [ 0x02 ] 2
Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
(null)
Item(Local ): Usage, data= [ 0x03 ] 3
(null)
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x04 ] 4
(null)
Item(Global): Report Count, data= [ 0x03 ] 3
Item(Main ): Feature, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage, data= [ 0x06 ] 6
(null)
Item(Global): Report ID, data= [ 0x03 ] 3
Item(Global): Report Count, data= [ 0xdf 0x03 ] 991
Item(Main ): Output, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): End Collection, data=none
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0009 1x 9 bytes
bInterval 10
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 41
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)

Attachments:

logitech-z10-lsusb (11.13 kB)

2008-02-19 16:52:11

by Jiri Kosina

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

On Tue, 19 Feb 2008, Tomas Carnecky wrote:

> usb 1-2.2: new full speed USB device using ehci_hcd and address 6
> usb 1-2.2: configuration #1 chosen from 1 choice
> HID device claimed by neither input, hiddev nor hidraw
> input: Logitech Z-10 USB Speaker as
> /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2.2/1-2.2:1.3/input/input4
> input: USB HID v1.10 Device [Logitech Z-10 USB Speaker] on
> usb-0000:00:02.1-2.2
> Nobody claims the device and yet an evdev device shows up in /dev/input? That

Yes, that looks indeed bogus.

> I enabled HID_DEBUG, but no debug messages show up in my dmesg output,
> which is strange.

You have to modprobe the 'hid' module with 'debug=1' parameter. Please
send me the resulting output.

--
Jiri Kosina
SUSE Labs

2008-02-19 17:43:19

by Tomas Carnecky

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

usb 1-2.2: new full speed USB device using ehci_hcd and address 8
usb 1-2.2: configuration #1 chosen from 1 choice
drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 2
drivers/hid/usbhid/hid-core.c: report descriptor (size 46, read 46) = 06 00 ff 09 00 a1 01 15 00 26 ff 00 75 08 95 08 06 00 ff 09 02 85 02 06 00 ff 09 03 81 02 09 04 95 03 b1 02 09 06 85 03 96 df 03 91 02 c0
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0102 wIndex=0x0002 wLength=9
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0302 wIndex=0x0002 wLength=4
INPUT(2)[INPUT]
Field(0)
Usage(8)
ff00.0002
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
ff00.0003
Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(8)
Report Offset(0)
Flags( Variable Absolute )
OUTPUT(3)[OUTPUT]
Field(0)
Usage(991)
ff00.0006
ff00.0006
ff00.0006
ff00.0006
ff00.0006
ff00.0006
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Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(991)
Report Offset(0)
Flags( Variable Absolute )
FEATURE(2)[FEATURE]
Field(0)
Usage(3)
ff00.0004
ff00.0004
ff00.0004
Logical Minimum(0)
Logical Maximum(255)
Report Size(8)
Report Count(3)
Report Offset(0)
Flags( Variable Absolute )
HID device claimed by neither input, hiddev nor hidraw
drivers/hid/usbhid/hid-core.c: HID probe called for ifnum 3
drivers/hid/usbhid/hid-core.c: report descriptor (size 41, read 41) = 05 0c 09 01 a1 01 09 e9 09 ea 09 e2 09 b3 09 b4 09 b5 09 b6 09 b7 09 cd 15 00 25 01 95 09 75 01 81 02 95 01 75 07 81 01 c0
drivers/hid/usbhid/hid-core.c: submitting ctrl urb: Get_Report wValue=0x0100 wIndex=0x0003 wLength=2
INPUT[INPUT]
Field(0)
Usage(9)
Consumer.00e9
Consumer.00ea
Consumer.00e2
Consumer.00b3
Consumer.00b4
Consumer.00b5
Consumer.00b6
Consumer.00b7
Consumer.00cd
Logical Minimum(0)
Logical Maximum(1)
Report Size(1)
Report Count(9)
Report Offset(0)
Flags( Variable Absolute )
drivers/hid/hid-input.c: Mapping: Consumer.00e9 ---> Key.VolumeUp
drivers/hid/hid-input.c: Mapping: Consumer.00ea ---> Key.VolumeDown
drivers/hid/hid-input.c: Mapping: Consumer.00e2 ---> Key.Mute
drivers/hid/hid-input.c: Mapping: Consumer.00b3 ---> Key.FastForward
drivers/hid/hid-input.c: Mapping: Consumer.00b4 ---> Key.Rewind
drivers/hid/hid-input.c: Mapping: Consumer.00b5 ---> Key.NextSong
drivers/hid/hid-input.c: Mapping: Consumer.00b6 ---> Key.PreviousSong
drivers/hid/hid-input.c: Mapping: Consumer.00b7 ---> Key.StopCD
drivers/hid/hid-input.c: Mapping: Consumer.00cd ---> Key.PlayPause
input: Logitech Z-10 USB Speaker as /devices/pci0000:00/0000:00:02.1/usb1/1-2/1-2.2/1-2.2:1.3/input/input6
input: USB HID v1.10 Device [Logitech Z-10 USB Speaker] on usb-0000:00:02.1-2.2
drivers/hid/hid-core.c: report (size 8) (unnumbered)
drivers/hid/hid-core.c: report 0 (size 8) = 00 00 28 00 00 00 00 00

Attachments:

dump (20.44 kB)

2008-02-19 17:48:52

by Jiri Kosina

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

On Tue, 19 Feb 2008, Tomas Carnecky wrote:

> The device apparently has four 'interfaces' - whatever that is, see [1].
> It seems like usbhid probes interface 2 (which is the LCD plus a few
> buttons, probably the four just under the LCD, as described [1]).
> Because usbhid doesn't know how to handle the buttons, it fails. But
> then it probes interface 3 which is a 'proper' HID device with
> well-defined buttons.

Yes, the dump clearly shows that.

Does anything appear in dmesg when you press those buttons? There should
be messages resembling the one you already have there:

drivers/hid/hid-core.c: report (size 8) (unnumbered)
drivers/hid/hid-core.c: report 0 (size 8) = 00 00 28 00 00 00 00 00

and they should react to keys such as FastForward, Play, Mute, Volume Up,
etc.

--
Jiri Kosina
SUSE Labs

2008-02-19 18:11:52

by Tomas Carnecky

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

Jiri Kosina wrote:
> On Tue, 19 Feb 2008, Tomas Carnecky wrote:
>
>> The device apparently has four 'interfaces' - whatever that is, see [1].
>> It seems like usbhid probes interface 2 (which is the LCD plus a few
>> buttons, probably the four just under the LCD, as described [1]).
>> Because usbhid doesn't know how to handle the buttons, it fails. But
>> then it probes interface 3 which is a 'proper' HID device with
>> well-defined buttons.
>
> Yes, the dump clearly shows that.
>
> Does anything appear in dmesg when you press those buttons? There should
> be messages resembling the one you already have there:
>
> drivers/hid/hid-core.c: report (size 8) (unnumbered)
> drivers/hid/hid-core.c: report 0 (size 8) = 00 00 28 00 00 00 00 00
>
> and they should react to keys such as FastForward, Play, Mute, Volume Up,
> etc.

Nothing. Not even after I removed the alsa-usb-audio driver. All I see
is Keyboard.*, but the events from the speaker should be Key.*, right?

It looks like the speaker goes into a different mode once the USB cable
is plugged in. Without the USB cable, the Z-10 acts as simple/dumb
speaker, the volume up/down buttons change the internal volume, and I
see that on the display, too. The play/next/prev song buttons don't do
anything, which is quite obvious.
But once the USB cable is plugged in, the volume up/down buttons stop
reacting. I assume they are now meant to send events to the computer so
that some software can decide what to do. But features that are not
useful for the computer (bass/treble), can still be controlled using the
buttons on the speaker. The buttons are not dead. I can see that because
the display goes to sleep after a few seconds of inactivity, and when I
press the volume buttons, it wakes up and displays the current volume.
So the speaker is definitely seeing that the buttons are being pressed.

Is there a USB packet inspector/dumper, like libpcap for network?

tom

2008-02-19 18:19:42

by Tomas Carnecky

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

Jiri Kosina wrote:
> Does anything appear in dmesg when you press those buttons? There should
> be messages resembling the one you already have there:
>
> drivers/hid/hid-core.c: report (size 8) (unnumbered)
> drivers/hid/hid-core.c: report 0 (size 8) = 00 00 28 00 00 00 00 00
>
> and they should react to keys such as FastForward, Play, Mute, Volume Up,
> etc.

This bug is in a completely different place then I thought! The speakers
were plugged into the hub built into my monitor. I plugged it directly
into the mainboard and voila, it works. Even g15daemon, the lcd driver,
can now display a nice clock on the lcd.

Could it be that the hub is defective?

tom

2008-02-19 20:03:33

by Jiri Kosina

[permalink] [raw]

Subject: Re: hid device not claimed but /dev/input/event exists

On Tue, 19 Feb 2008, Tomas Carnecky wrote:

> This bug is in a completely different place then I thought! The speakers
> were plugged into the hub built into my monitor. I plugged it directly
> into the mainboard and voila, it works. Even g15daemon, the lcd driver,
> can now display a nice clock on the lcd. Could it be that the hub is
> defective?

Definitely could be.

Please collect usbmon logs (this is what you asked for previously -- the
USB traffic analyzer -- see Documentation/usb/usbmon.txt) and send them to
the usb-devel mailinglist. This is no longer related to HID code at all.

Thanks for tracking this down,

--
Jiri Kosina
SUSE Labs