Messages in this thread | | | Date | Tue, 16 Jun 2009 09:34:28 +0100 | From | Alan Jenkins <> | Subject | Re: [gpm] [PATCH 2.6.29] eeepc-laptop: report brightness control events via the input layer |
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Richard Hughes wrote: > On Mon, Jun 15, 2009 at 9:09 AM, Alan > Jenkins<alan-jenkins@tuffmail.co.uk> wrote: > >> So during step iii) I think you see the firmware >> increase the brightness, then g-p-m decrease the brightness, and then >> g-p-m catches up and the brightness increases again. >> > > Sorry for not responding sooner, been moving house. > > I don't think the kernel driver should modify the brightness itself, > as that's applying policy. Is this is left to userspace then we can > put on policy such as "don't allow brightness to be set below 30%" or > "automatically set the brightness using a ambient light sensor, and > use the brightness keys to set ambient thresholds". > > Doing this policy in the driver is the wrong thing to do IMO. > > Richard. >
The driver doesn't. As far as we know, none of them do. Firmware does.
Thanks Alan
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