linux-kernel - Re: Regression 2.6.31: ioctl(EVIOCGNAME) no longer returns device name

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Message-ID: <20090719193952.GC17495@dtor-d630.eng.vmware.com>
Date:	Sun, 19 Jul 2009 12:39:52 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Mark Lord <lkml@....ca>
Cc:	Jean Delvare <khali@...ux-fr.org>, Andy Walls <awalls@...ix.net>,
	linux-media@...r.kernel.org, Jarod Wilson <jarod@...hat.com>,
	Mike Isely <isely@...ox.com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	Janne Grunau <j@...nau.net>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-input@...r.kernel.org
Subject: Re: Regression 2.6.31:  ioctl(EVIOCGNAME) no longer returns device
	name

On Sun, Jul 19, 2009 at 03:20:50PM -0400, Mark Lord wrote:
> Mark Lord wrote:
>> (resending.. somebody trimmed linux-kernel from the CC: earlier)
>>
>> Jean Delvare wrote:
>>> On Sun, 19 Jul 2009 10:38:37 -0400, Mark Lord wrote:
>>>> I'm debugging various other b0rked things in 2.6.31 here right now,
>>>> so I had a closer look at the Hauppauge I/R remote issue.
>>>>
>>>> The ir_kbd_i2c driver *does* still find it after all.
>>>> But the difference is that the output from 'lsinput' has changed
>>>> and no longer says "Hauppauge".  Which prevents the application from
>>>> finding the remote control in the same way as before.
>>>
>>> OK, thanks for the investigation.
>>>
>>>> I'll hack the application code here now to use the new output,
>>>> but I wonder what the the thousands of other users will do when
>>>> they first try 2.6.31 after release ?
> ..
>
> Mmm.. appears to be a systemwide thing, not just for the i2c stuff.
> *All* of the input devices now no longer show their real names
> when queried with ioctl(EVIOCGNAME).  This is a regression from 2.6.30.
> Note that the real names *are* still stored somewhere, because they
> do still show up correctly under /sys/
>

Should be fixed by f936601471d1454dacbd3b2a961fd4d883090aeb in the
for-linus branch of my tree.

-- 
Dmitry
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