HID: wacom: fix bit shift for Cintiq Companion 2
diff mbox series

Message ID 1563905355-20921-1-git-send-email-aaron.skomra@wacom.com
State Mainlined
Commit 693c3dab4e50403f91bca4b52fc6d8562a3180f6
Delegated to: Jiri Kosina
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Series
  • HID: wacom: fix bit shift for Cintiq Companion 2
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Commit Message

Aaron Armstrong Skomra July 23, 2019, 6:09 p.m. UTC
The bit indicating BTN_6 on this device is overshifted
by 2 bits, resulting in the incorrect button being
reported.

Also fix copy-paste mistake in comments.

Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Link: https://github.com/linuxwacom/xf86-input-wacom/issues/71
Fixes: c7f0522a1ad1 ("HID: wacom: Slim down wacom_intuos_pad processing")
Cc: <stable@vger.kernel.org> # v4.5+
---
 drivers/hid/wacom_wac.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Comments

Jiri Kosina Aug. 5, 2019, 12:15 p.m. UTC | #1
On Tue, 23 Jul 2019, Aaron Armstrong Skomra wrote:

> The bit indicating BTN_6 on this device is overshifted
> by 2 bits, resulting in the incorrect button being
> reported.
> 
> Also fix copy-paste mistake in comments.
> 
> Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
> Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
> Link: https://github.com/linuxwacom/xf86-input-wacom/issues/71
> Fixes: c7f0522a1ad1 ("HID: wacom: Slim down wacom_intuos_pad processing")
> Cc: <stable@vger.kernel.org> # v4.5+

Applied to for-5.3/upstream-fixes. Thanks,

Patch
diff mbox series

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 8fc36a28081b..7a8ddc999a8e 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -533,14 +533,14 @@  static int wacom_intuos_pad(struct wacom_wac *wacom)
 		 */
 		buttons = (data[4] << 1) | (data[3] & 0x01);
 	} else if (features->type == CINTIQ_COMPANION_2) {
-		/* d-pad right  -> data[4] & 0x10
-		 * d-pad up     -> data[4] & 0x20
-		 * d-pad left   -> data[4] & 0x40
-		 * d-pad down   -> data[4] & 0x80
-		 * d-pad center -> data[3] & 0x01
+		/* d-pad right  -> data[2] & 0x10
+		 * d-pad up     -> data[2] & 0x20
+		 * d-pad left   -> data[2] & 0x40
+		 * d-pad down   -> data[2] & 0x80
+		 * d-pad center -> data[1] & 0x01
 		 */
 		buttons = ((data[2] >> 4) << 7) |
-		          ((data[1] & 0x04) << 6) |
+		          ((data[1] & 0x04) << 4) |
 		          ((data[2] & 0x0F) << 2) |
 		          (data[1] & 0x03);
 	} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {