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Message-Id: <20220822062247.1146141-1-benjamin.tissoires@redhat.com>
Date: Mon, 22 Aug 2022 08:22:47 +0200
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
To: Jiri Kosina <jikos@...nel.org>,
Stefan Hansson <newbie13xd@...il.com>,
José Expósito <jose.exposito89@...il.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
Benjamin Tissoires <benjamin.tissoires@...hat.com>
Subject: [PATCH] HID: input: fix uclogic tablets
commit 87562fcd1342 ("HID: input: remove the need for HID_QUIRK_INVERT")
made the assumption that it was the only one handling tablets and thus
kept an internal state regarding the tool.
Turns out that the uclogic driver has a timer to release the in range
bit, effectively making hid-input ignoring all in range information
after the very first one.
Fix that by having a more rationale approach which consists in forwarding
every event and let the input stack filter out the duplicates.
Reported-by: Stefan Hansson <newbie13xd@...il.com>
Fixes: 87562fcd1342 ("HID: input: remove the need for HID_QUIRK_INVERT")
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
---
drivers/hid/hid-input.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 48c1c02c69f4..871a185a0f1f 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1532,7 +1532,10 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
* assume ours
*/
if (!report->tool)
- hid_report_set_tool(report, input, usage->code);
+ report->tool = usage->code;
+
+ /* drivers may have changed the value behind our back, resend it */
+ hid_report_set_tool(report, input, report->tool);
} else {
hid_report_release_tool(report, input, usage->code);
}
--
2.37.1
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