Re: [PATCH] Fix a issue that Alps Touchpad cursor does not work

From: Jiri Kosina
Date: Mon Sep 26 2016 - 11:33:01 EST


On Fri, 23 Sep 2016, Masaki Ota wrote:

> fix Touchpad cursor does not work after touching Touchpad
> by 3 or more fingers.

Please provide more verbose changelog -- namely why the current code is
wrong and how does your patch fixes it.

Thanks.

> Signed-off-by: Masaki Ota <masaki.ota@xxxxxxxxxxx>
> ---
> drivers/hid/hid-alps.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
> index 048befd..610df92 100644
> --- a/drivers/hid/hid-alps.c
> +++ b/drivers/hid/hid-alps.c
> @@ -190,16 +190,16 @@ static int alps_raw_event(struct hid_device *hdev,
> if (z != 0) {
> input_mt_report_slot_state(hdata->input,
> MT_TOOL_FINGER, 1);
> + input_report_abs(hdata->input,
> + ABS_MT_POSITION_X, x);
> + input_report_abs(hdata->input,
> + ABS_MT_POSITION_Y, y);
> + input_report_abs(hdata->input,
> + ABS_MT_PRESSURE, z);
> } else {
> input_mt_report_slot_state(hdata->input,
> MT_TOOL_FINGER, 0);
> - break;
> }
> -
> - input_report_abs(hdata->input, ABS_MT_POSITION_X, x);
> - input_report_abs(hdata->input, ABS_MT_POSITION_Y, y);
> - input_report_abs(hdata->input, ABS_MT_PRESSURE, z);
> -
> }
>
> input_mt_sync_frame(hdata->input);

--
Jiri Kosina
SUSE Labs