linux-kernel - Re: [PATCH v2] HID: i2c-hid: add ACPI support

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Date:	Fri, 18 Jan 2013 11:42:03 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Benjamin Tissoires <benjamin.tissoires@...il.com>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	linux-input@...r.kernel.org, Jean Delvare <khali@...ux-fr.org>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v2] HID: i2c-hid: add ACPI support

On Thu, 17 Jan 2013, Benjamin Tissoires wrote:

> >> > The HID over I2C protocol specification states that when the device is
> >> > enumerated from ACPI the HID descriptor address can be obtained by
> >> > executing "_DSM" for the device with function 1. Enable this.
> >> >
> >> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
> >>
> >> I'm eager to test it (hopefully next week).
> >>
> >> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> >
> > Perfect. I will wait for your Tested-by: as well before applying to public
> > git tree.
> 
> Hi Jiri,
> 
> well, we tried yesterday to make all those things working, but the
> Haswell platform I was able to have access was not very cooperative.
> So I wasn't able to test the whole autodetection mechanism through
> ACPI (I even not managed to communicate with the various HID over i2c
> devices that were available to test).
> 
> However, Mika managed to test this ACPI stuff, and he is able to
> retrieve the HID descriptor address. Given that, I think it's safe to
> include it right now. There will still be the last point with the
> gpios, but it will come when someone get access to a device presenting
> this feature.

Thanks a lot for the update. I have now applied Mika's patch.

-- 
Jiri Kosina
SUSE Labs
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