All of lore.kernel.org
 help / color / mirror / Atom feed
From: "José Expósito" <jose.exposito89@gmail.com>
To: jikos@kernel.org
Cc: benjamin.tissoires@redhat.com, linux-input@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"José Expósito" <jose.exposito89@gmail.com>
Subject: [PATCH 2/2] HID: uclogic: Use Rx and Ry for touch strips
Date: Fri, 24 May 2024 13:21:36 +0200	[thread overview]
Message-ID: <20240524112554.166746-3-jose.exposito89@gmail.com> (raw)
In-Reply-To: <20240524112554.166746-1-jose.exposito89@gmail.com>

Currently, HUION devices use ABS_WHEEL as the usage for touch strips.

There are 2 main issues with this approach:

The first one is that the descriptor for touch rings
(uclogic_rdesc_v2_frame_touch_ring_arr) also uses ABS_WHEEL.
From user-space it is impossible to know which device sends the events.

The second one is that Wacom uses ABS_RX/ABS_RY to notify events from
touch strips and user-space was designed to handle those axes.

Change the usage of touch strips to Rx/Ry to fix both issues.

Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/989
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
---
 drivers/hid/hid-uclogic-rdesc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-uclogic-rdesc.c b/drivers/hid/hid-uclogic-rdesc.c
index 7cbd673747a5..dfd74a043b39 100644
--- a/drivers/hid/hid-uclogic-rdesc.c
+++ b/drivers/hid/hid-uclogic-rdesc.c
@@ -789,7 +789,8 @@ const __u8 uclogic_rdesc_v2_frame_touch_strip_arr[] = {
 	0x95, 0x01,         /*          Report Count (1),           */
 	0x81, 0x02,         /*          Input (Variable),           */
 	0x05, 0x01,         /*          Usage Page (Desktop),       */
-	0x09, 0x38,         /*          Usage (Wheel),              */
+	0x09, 0x33,         /*          Usage (Rx),                 */
+	0x09, 0x34,         /*          Usage (Ry),                 */
 	0x95, 0x01,         /*          Report Count (1),           */
 	0x15, 0x00,         /*          Logical Minimum (0),        */
 	0x25, 0x07,         /*          Logical Maximum (7),        */
-- 
2.45.1


  parent reply	other threads:[~2024-05-24 11:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-24 11:21 [PATCH 0/2] Improve HUION Kamvas Pro 24 support José Expósito
2024-05-24 11:21 ` [PATCH 1/2] HID: uclogic: Support HUION devices with up to 20 buttons José Expósito
2024-05-24 11:21 ` José Expósito [this message]
2024-06-04  8:13 ` [PATCH 0/2] Improve HUION Kamvas Pro 24 support Jiri Kosina

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240524112554.166746-3-jose.exposito89@gmail.com \
    --to=jose.exposito89@gmail.com \
    --cc=benjamin.tissoires@redhat.com \
    --cc=jikos@kernel.org \
    --cc=linux-input@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.