Re: USB keyboard recognized as HID keyboard but doesn't work

On Tue, 3 May 2011, Alan Stern wrote:

quoted

Do you know of a way for me to tell the kernel/usbhid to use interface 1 
and ignore interface 0?

Well, you can always unbind interface 0 from usbhid -- it corresponds
to the 2-1.1:1.0 file in /sys/bus/usb/drivers/usbhid/.  If you do that,
you'll probably find the few keys which _do_ currently work suddenly
stop working.

But there's nothing to be done immediately about interface 1; usbhid is
_already_ using it.  It just isn't using it correctly.

Adi,

could you please provide output of

	cat /syse/kernel/debug/hid/<keyboard>/rdesc

anytime after the keyboard has been plugged, and

	cat /syse/kernel/debug/hid/<keyboard>/events

from the time you press any of the working and non-working keys? (both 
cases will be interesting).

Oh, and the above assumes that you have debugfs mounted under 
/sys/kernel/debug.

Thanks,

-- 
Jiri Kosina
SUSE Labs