Messages in this thread | | | Date | Thu, 9 Feb 2006 09:53:44 +0100 | From | Gabor Gombas <> | Subject | Re: [linux-pm] Re: [PATCH, RFC] [1/3] Generic in-kernel AC status |
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On Wed, Feb 08, 2006 at 05:08:58PM +0000, Matthew Garrett wrote:
> The backlight interface only supports exporting and setting the current > brightness. For various bits of hardware, the AC and DC brightnesses are > stored separately. Drivers would need to know which brightness value to > export to userspace. I have an HP backlight driver here which would > benefit from this, and I'm looking at the same issue for a Panasonic > one.
I don't know the backlight interface but extending it to export all available brightness values would seem more logical to me.
If I'd had a laptop I'd hate if I could only set the DC brightness if I plug out the AC power.
Gabor
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