Planning to write a patch

[Manish Katiyar]

On Wed, Aug 26, 2015 at 10:45 AM, Umair Khan <omerjerk at gmail.com> wrote:
> Hello everyone,
>
> I've been thinking of writing a patch a lot lately. But with my level of
> knowledge I cannot do something groundbreaking.
> One thing which came to my mind is to write a patch related to the driver
> which controls the brightness of the display.
> What happens now is I lower down the brightness, and when I restart the
> laptop, it's back to the highest amount.
> I'm using Ubuntu 14.04 LTS on top of Linux Kernel 4.2 rc3+.
> I was thinking of writing the current brightness to sysfs and read that
> value when the driver is started during the boot.
>
> So, my question is that is it already implemented in the driver and just
> that Ubuntu resets it on every reboot from userspace ?
> And if it is not implemented, is it worth implementing ?

I don't know whether its implemented or not, but kernel looks like the
wrong place to solve this. This is something that should be done in
userspace