HID: multitouch: Set to high latency mode on suspend.

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Per Windows Precision Touchpad guidelines:

> The latency mode feature report is sent by the host to a Windows
> Precision Touchpad to indicate when high latency is desirable for
> power savings and, conversely, when normal latency is desired for
> operation.
>
> For USB-connected Windows Precision Touchpads, this enables the device
> to disambiguate between being suspended for inactivity (runtime IDLE)
> and being suspended because the system is entering S3 or Connected
> Standby.

The current implementation would set the latency to normal on device initialization,
but we didn't set the device to high latency on suspend.

Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

...

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Blaž Hrastnik 2020-12-19 13:47:41 +09:00 • committed by Jiri Kosina

parent 2bbe17ae87

commit c7aa374e00

1 changed files with 10 additions and 0 deletions

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drivers/hid/hid-multitouch.c

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