[maemo-developers] n810: Light Sensor (?)

[From: Neil MacLeod]

Andrew Barr wrote:
> Luca De Cicco wrote:
> 
>> Hi there to the list.
>>
>> Sorry if ask something which has been already discussed...
>> I was wondering if there is some specification about the
>> small thing near the camera which appears to be a Light Sensor.
> 
> Your best bet is to hook up SSH or an xterm or something and poke around the
> filesystem. I imagine Nokia are going to be closed-mouthed about it for the
> time being like they were with the FM radio in the N800.
> 
> Alternatively looking at kernel sources would be a good idea.
> 

Deleting or renaming /usr/lib/mce/modules/libfilter-brightness-als.so (and rebooting) is an effective way to stop the light sensor from randomly and inappropriately changing the display brightness[1] even in a well lit environment.

It might be worth perusing the source code for the aforementioned library in order to glean any useful tidbits (assuming it hasn't been retained as closed source).

1. https://bugs.maemo.org/show_bug.cgi?id=2755