Messages in this thread | | | Subject | Re: [PATCH] platform/x86: ideapad-laptop: Expose conservation mode switch | From | Hao Wei Tee <> | Date | Tue, 30 May 2017 22:05:01 +0800 |
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On 5/30/17 9:22 PM, Andy Shevchenko wrote: > On Sun, May 28, 2017 at 4:47 PM, Hao Wei Tee <angelsl@angelsl.xyz> wrote: >> On 5/27/17 3:31 PM, Hao Wei Tee wrote: >>> This exposes the battery conservation mode present on some (?) IdeaPads. >>> The mode is set by calling ACPI method SBMC with argument 3 (on) or >>> 5 (off). Status is reported in bit 5 of the return value of ACPI method >>> GBMD. >>> >>> This patch was written based on an IdeaPad U430p. I'm not sure if the ACPI >>> methods are the same across all IdeaPads, so it would be great if this got more >>> testing across other models before it's merged. >> >> I got someone to test on an IdeaPad Y510p. It works on that too. > > Do we have any other option that expose something via sysfs? >
Sorry, not sure what you meant.
If you meant
> Do we have any other options than expose something via sysfs?
I'm not sure, maybe an ioctl? That wouldn't be very convenient though.
The tp_smapi module (not in mainline) that exposes the battery threshold functionality for ThinkPads also uses sysfs.
If you meant
> Do we have any other options that expose something via sysfs?
yes, camera_power, fan_mode, touchpad and conservation_mode.
Hao Wei
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