* Support for ACPI0011 Generic Buttons Device
@ 2016-11-03 13:24 Daniel Drake
2016-11-03 13:30 ` Bastien Nocera
0 siblings, 1 reply; 2+ messages in thread
From: Daniel Drake @ 2016-11-03 13:24 UTC (permalink / raw)
To: linux-acpi, linux-input; +Cc: Linux Upstreaming Team
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-button-device
I can't see a Linux driver for this ACPI0011 interface, is one planned?
Thanks
Daniel
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Support for ACPI0011 Generic Buttons Device
2016-11-03 13:24 Support for ACPI0011 Generic Buttons Device Daniel Drake
@ 2016-11-03 13:30 ` Bastien Nocera
0 siblings, 0 replies; 2+ messages in thread
From: Bastien Nocera @ 2016-11-03 13:30 UTC (permalink / raw)
To: Daniel Drake, linux-acpi, linux-input; +Cc: Linux Upstreaming Team
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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