2009-01-30 09:06:36

by Pavel Machek

[permalink] [raw]
Subject: [PATCH] w35und: fix registration with wlan stack

Initialize few more fields in wireless device structure so that
wireless core actually accepts our registration.

Signed-off-by: Pavel Machek <[email protected]>

---
commit 87290671d60a4f0e734f389a266b13d71c275ce4
tree c8e312a3ef0b0d250c1e605ce86bff94c0254847
parent e6de9be58f118cba6ccfef28830db701b8cc9f46
author Pavel <[email protected]> Fri, 30 Jan 2009 09:08:36 +0100
committer Pavel <[email protected]> Fri, 30 Jan 2009 09:08:36 +0100

drivers/staging/winbond/wbusb.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
index b003f9a..49f1bf0 100644
--- a/drivers/staging/winbond/wbusb.c
+++ b/drivers/staging/winbond/wbusb.c
@@ -369,9 +369,11 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
}

dev->extra_tx_headroom = 12; /* FIXME */
- dev->flags = 0;
+ dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);

dev->channel_change_time = 1000;
+ dev->max_signal = 100;
dev->queues = 1;

dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


2009-01-30 09:14:08

by Pekka Enberg

[permalink] [raw]
Subject: Re: [PATCH] w35und: fix registration with wlan stack

On Fri, 2009-01-30 at 10:05 +0100, Pavel Machek wrote:
> Initialize few more fields in wireless device structure so that
> wireless core actually accepts our registration.
>
> Signed-off-by: Pavel Machek <[email protected]>

Acked-by: Pekka Enberg <[email protected]>

Looking at the changes, lets see if we can get some more review on this:

> ---
> commit 87290671d60a4f0e734f389a266b13d71c275ce4
> tree c8e312a3ef0b0d250c1e605ce86bff94c0254847
> parent e6de9be58f118cba6ccfef28830db701b8cc9f46
> author Pavel <[email protected]> Fri, 30 Jan 2009 09:08:36 +0100
> committer Pavel <[email protected]> Fri, 30 Jan 2009 09:08:36 +0100
>
> drivers/staging/winbond/wbusb.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
> index b003f9a..49f1bf0 100644
> --- a/drivers/staging/winbond/wbusb.c
> +++ b/drivers/staging/winbond/wbusb.c
> @@ -369,9 +369,11 @@ static int wb35_probe(struct usb_interface *intf, const struct usb_device_id *id
> }
>
> dev->extra_tx_headroom = 12; /* FIXME */
> - dev->flags = 0;
> + dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
> + dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);

The wiphy->interface_modes thing is probably fall-out from commit
8dffff216fcac4f79078478085e86d68db64922e ("mac80211: only create default
STA interface if supported"). I'm cc'ing Johannes.

>
> dev->channel_change_time = 1000;
> + dev->max_signal = 100;

And the IEEE80211_HW_SIGNAL_UNSPEC and ->max_signal from commit
566bfe5a8bcde13188a356f77666f8115813cf31 ("mac80211: use hardware flags
for signal/noise units"). Lets cc Bruno.

> dev->queues = 1;
>
> dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &wbsoft_band_2GHz;

2009-01-30 09:16:43

by Johannes Berg

[permalink] [raw]
Subject: Re: [PATCH] w35und: fix registration with wlan stack

On Fri, 2009-01-30 at 11:13 +0200, Pekka Enberg wrote:


> > dev->extra_tx_headroom = 12; /* FIXME */
> > - dev->flags = 0;
> > + dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
> > + dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
>
> The wiphy->interface_modes thing is probably fall-out from commit
> 8dffff216fcac4f79078478085e86d68db64922e ("mac80211: only create default
> STA interface if supported"). I'm cc'ing Johannes.

Yes. That looks reasonable, though it means you'll only support STA, not
ad-hoc.

> >
> > dev->channel_change_time = 1000;
> > + dev->max_signal = 100;
>
> And the IEEE80211_HW_SIGNAL_UNSPEC and ->max_signal from commit
> 566bfe5a8bcde13188a356f77666f8115813cf31 ("mac80211: use hardware flags
> for signal/noise units"). Lets cc Bruno.

Seems reasonable, though does it would be good to see if it can do DBM,
which we very very much prefer.

johannes


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2009-01-30 09:38:57

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH] w35und: fix registration with wlan stack

> On Fri, 2009-01-30 at 11:13 +0200, Pekka Enberg wrote:
>
>
> > > dev->extra_tx_headroom = 12; /* FIXME */
> > > - dev->flags = 0;
> > > + dev->flags = IEEE80211_HW_SIGNAL_UNSPEC;
> > > + dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
> >
> > The wiphy->interface_modes thing is probably fall-out from commit
> > 8dffff216fcac4f79078478085e86d68db64922e ("mac80211: only create default
> > STA interface if supported"). I'm cc'ing Johannes.
>
> Yes. That looks reasonable, though it means you'll only support STA, not
> ad-hoc.

Ok. The driver is very basic for now (can only do channel 1), so we
certainly have bigger problems than ad-hoc.

> > > dev->channel_change_time = 1000;
> > > + dev->max_signal = 100;
> >
> > And the IEEE80211_HW_SIGNAL_UNSPEC and ->max_signal from commit
> > 566bfe5a8bcde13188a356f77666f8115813cf31 ("mac80211: use hardware flags
> > for signal/noise units"). Lets cc Bruno.
>
> Seems reasonable, though does it would be good to see if it can do DBM,
> which we very very much prefer.

Well, currenlty it reports all zeros...
Pavel

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

2009-01-30 09:42:17

by Johannes Berg

[permalink] [raw]
Subject: Re: [PATCH] w35und: fix registration with wlan stack

On Fri, 2009-01-30 at 10:38 +0100, Pavel Machek wrote:

> > > > dev->channel_change_time = 1000;
> > > > + dev->max_signal = 100;
> > >
> > > And the IEEE80211_HW_SIGNAL_UNSPEC and ->max_signal from commit
> > > 566bfe5a8bcde13188a356f77666f8115813cf31 ("mac80211: use hardware flags
> > > for signal/noise units"). Lets cc Bruno.
> >
> > Seems reasonable, though does it would be good to see if it can do DBM,
> > which we very very much prefer.
>
> Well, currenlty it reports all zeros...

In that case you shouldn't do this patch to avoid userspace getting
bogus values.

johannes


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