linux-kernel - Re: USB HID bug (was [PROBLEM] Bonding driver in linux-2.6.21-rc6-mm1)

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Message-ID: <Pine.LNX.4.64.0704281702480.7370@jikos.suse.cz>
Date:	Sat, 28 Apr 2007 17:06:11 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Vincent ETIENNE <ve@...ienne.net>
Cc:	Greg KH <greg@...ah.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Paul Walmsley <paul@...yaka.com>,
	linux-usb-devel@...ts.sourceforge.net
Subject: Re: USB HID bug (was [PROBLEM] Bonding driver in linux-2.6.21-rc6-mm1)

On Sat, 28 Apr 2007, Vincent ETIENNE wrote:

> > I now don't immediately see how this could happen - the vendor ID 
> > seems to be propagated properly from hid_probe() (nothing has been 
> > changed in this codepath), so this would mean that hid_probe() has 
> > been passed usb_interface for which 
> > le16_to_cpu(interface_to_usbdev(intf).dev->descriptor.idVendor) is 
> > equal to zero ...  and this definitely shouldn't happen for any sane 
> > device (could the original poster please verify with lsusb, just to be 
> > 100% sure?).
> You could download the result of lsusb -vvv from 
> http://mail1.vetienne.net/linux/lsusb.log

Hi Vincent,

thanks for the report. It's pretty awesome though - all the USB devices 
seem to have vendor and product id set to 0x0000. Greg, have you ever met 
this? 

linux-usb-devel added to CC (full thread here: 
http://lkml.org/lkml/2007/4/27/496)

So this definitely isn't a HID-specific problem, something is confusing 
the USB VID/PIDs.

-- 
Jiri Kosina
SUSE Labs
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