Re: Support for ACPI0011 Generic Buttons Device

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On Thu, 2016-11-03 at 07:24 -0600, Daniel Drake wrote:
> Hi,
> 
> We are working with a new consumer laptop model which has physical
> volume up/down keys on the left side of the chassis.
> 
> It appears that these buttons are driven by the ACPI0011 Generic
> Buttons Device defined in section 9.19 of the ACPI spec. The _DSD has
> entries for the appropriate HID codes for volume up/down which can
> also be seen in examples here:
> 
> https://msdn.microsoft.com/en-us/windows/hardware/drivers/hid/acpi-bu
> tton-device
> 
> I can't see a Linux driver for this ACPI0011 interface, is one
> planned?

drivers/input/misc/soc_button_array.c has an implementation of the
"Windows compatible button array":
https://msdn.microsoft.com/en-us/windows/hardware/drivers/bringup/other-acpi-namespace-objects#windows-compatible-button-array

Looks pretty similar.
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