On Mon, Mar 02, 2015 at 12:13:14PM -0800, Jason Gerecke wrote:
> [ Upstream commit 33e5df0e0e32027866e9fb00451952998fc957f2 ]
>
> It appears that the Cintiq Companion Hybrid does not send an ABS_MISC event to
> userspace when any of its ExpressKeys are pressed. This is not strictly
> necessary now that the pad exists on its own device, but should be fixed for
> consistency's sake.
>
> Traditionally both the stylus and pad shared the same device node, and
> xf86-input-wacom would use ABS_MISC for disambiguation. Not sending this
> causes
> the Hybrid to behave incorrectly with xf86-input-wacom beginning with its
> 8f44f3 commit.
>
> Signed-off-by: Jason Gerecke <[email protected]>
> Reviewed-by: Benjamin Tissoires <[email protected]>
> Signed-off-by: Jiri Kosina <[email protected]>
> [[email protected]: ported to drivers/input/tablet/wacom_wac.c]
> Signed-off-by: Jason Gerecke <[email protected]>
> ---
> Note for stable maintainers: "Traditionally" above means "prior to Linux
> 3.17".
> Support for this device was added in 3.13, so the 3.14 longterm is affected.
> The current "stable" is unaffected since it is based on 3.18.
>
Thank you, I'll queue this backport for 3.16 kernel as well.
Cheers,
--
Luís
> V2:
> * Updated S-O-B chain to reflect that the upstream patch has been
> minimally modified (port from drivers/hid to drivers/input)
> * Added missing paren which escaped me durring the port.
>
> drivers/input/tablet/wacom_wac.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/input/tablet/wacom_wac.c
> b/drivers/input/tablet/wacom_wac.c
> index 05f371d..d4b0a31 100644
> --- a/drivers/input/tablet/wacom_wac.c
> +++ b/drivers/input/tablet/wacom_wac.c
> @@ -700,6 +700,12 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
> input_report_key(input, BTN_7, (data[4] & 0x40)); /*
> Left */
> input_report_key(input, BTN_8, (data[4] & 0x80)); /*
> Down */
> input_report_key(input, BTN_0, (data[3] & 0x01)); /*
> Center */
> +
> + if (data[4] | (data[3] & 0x01)) {
> + input_report_abs(input, ABS_MISC,
> PAD_DEVICE_ID);
> + } else {
> + input_report_abs(input, ABS_MISC, 0);
> + }
> } else if (features->type >= INTUOS5S && features->type <=
> INTUOSPL) {
> int i;
>
> --
> 2.3.0
>
> --
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