linux-kernel - Re: [PATCH v3 08/13] HID: hid-multitouch: move ALWAYS

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Message-ID: <20121113155758.GA574@polaris.bitmath.org>
Date:	Tue, 13 Nov 2012 16:57:58 +0100
From:	"Henrik Rydberg" <rydberg@...omail.se>
To:	Benjamin Tissoires <benjamin.tissoires@...il.com>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Stephane Chatty <chatty@...c.fr>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 08/13] HID: hid-multitouch: move ALWAYS_VALID quirk
 check

On Wed, Nov 07, 2012 at 05:37:31PM +0100, Benjamin Tissoires wrote:
> Win 8 device specification changed the requirements for the hid usages
> of the multitouch devices. Now InRange is optional and must be only
> used when the device supports hovering.
> 
> This ensures that the quirk ALWAYS_VALID is taken into account and
> also ensures its precedence over the other VALID* quirks.
> 
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...il.com>
> ---
>  drivers/hid/hid-multitouch.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
> index 54367f4..2352770 100644
> --- a/drivers/hid/hid-multitouch.c
> +++ b/drivers/hid/hid-multitouch.c
> @@ -503,7 +503,7 @@ static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
>   */
>  static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
>  {
> -	if (td->curvalid) {
> +	if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
>  		int slotnum = mt_compute_slot(td, input);
>  		struct mt_slot *s = &td->curdata;
>  
> @@ -554,9 +554,7 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
>  	if (hid->claimed & HID_CLAIMED_INPUT) {
>  		switch (usage->hid) {
>  		case HID_DG_INRANGE:
> -			if (quirks & MT_QUIRK_ALWAYS_VALID)
> -				td->curvalid = true;
> -			else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
> +			if (quirks & MT_QUIRK_VALID_IS_INRANGE)
>  				td->curvalid = value;
>  			break;
>  		case HID_DG_TIPSWITCH:
> -- 
> 1.7.11.7
> 

    Reviewed-by: Henrik Rydberg <rydberg@...omail.se>

Thanks,
Henrik
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