[Intel-gfx] Legacy backlight control with KMS and BACKLIGHT property

[Mike Lothian]

2009/8/19 Jesse Barnes <jbarnes at virtuousgeek.org>:
> On Wed, 19 Aug 2009 08:03:06 +0100
> Mike Lothian <mike at fireburn.co.uk> wrote:
>> > # cd /sys/devices/pci0000\:00/0000\:00\:02.0/
>> > # echo 1 > rom
>> > # cat rom > /tmp/rom.bin
>> > # echo 0 > rom
>> >
>> > Thanks,
>> > --
>> > Jesse Barnes, Intel Open Source Technology Center
>> >
>>
>> That doesn't seem to work
>>
>> tau 0000:00:02.0 #  echo 1 > rom
>> bash: rom: No such file or directory
>
> ?!  Hm, that could cause some problems...  Can I see your dmesg from a
> fresh boot?  Maybe the kernel isn't allocating space for the ROM.
>
> --
> Jesse Barnes, Intel Open Source Technology Center
>

Please find it attached

Cheers

Mike
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