[Gta04-owner] Setting display backlight brightness

Dr. H. Nikolaus Schaller hns at goldelico.com
Mon Nov 21 16:20:11 CET 2011


Am 21.11.2011 um 16:16 schrieb Radek Polak:

> On Monday 21 November 2011 15:52:53 Dr. H. Nikolaus Schaller wrote:
> 
>> This is one of the open issues known for a long time:
>> 
>> 	http://projects.goldelico.com/p/gta04-kernel/issues/85/
>> 
>> But should not be too difficult to implement. If you try, please
>> keep me in the loop so that we can add it for everyone.
> 
> I have no experience with kernel development, so i will try to stay on 

No problem. If I find some time, I will give it a try. Or someone else jumps in.

> userspace for now ;-) It's not a big issue anyways. It's nice that we can turn 
> the LCD off for now - it will be interesting to see how it affects battery.

Ah, I see.

Theoretically it draws approx. 100 mA from the Battery. The CPU draws 300-400
and WLAN/BT up to 200 if fully active. So a rough guess is in the 20% range.

BR,
Nikolaus


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