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From: Benjamin Tissoires <bentiss@kernel.org>
To: Jiri Kosina <jikos@kernel.org>,
	Benjamin Tissoires <bentiss@kernel.org>,
	 Shuah Khan <shuah@kernel.org>,
	Peter Hutterer <peter.hutterer@who-t.net>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-kselftest@vger.kernel.org
Subject: [PATCH 01/18] HID: do not assume HAT Switch logical max < 8
Date: Wed, 10 Apr 2024 19:19:21 +0200	[thread overview]
Message-ID: <20240410-bpf_sources-v1-1-a8bf16033ef8@kernel.org> (raw)
In-Reply-To: <20240410-bpf_sources-v1-0-a8bf16033ef8@kernel.org>

Turns out that the code can handle a greater range, but the data stored
can not. This is problematic on the Raptor Mach 2 joystick which
logical max is 239. The kernel interprets it as `-15` and thus ignores
the Hat Switch handling.

Link: https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/issues/17
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
 include/linux/hid.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index b12cb1c8e682..8e06d89698e6 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -474,9 +474,9 @@ struct hid_usage {
 	__s8	  wheel_factor;		/* 120/resolution_multiplier */
 	__u16     code;			/* input driver code */
 	__u8      type;			/* input driver type */
-	__s8	  hat_min;		/* hat switch fun */
-	__s8	  hat_max;		/* ditto */
-	__s8	  hat_dir;		/* ditto */
+	__s16	  hat_min;		/* hat switch fun */
+	__s16	  hat_max;		/* ditto */
+	__s16	  hat_dir;		/* ditto */
 	__s16	  wheel_accumulated;	/* hi-res wheel */
 };
 

-- 
2.44.0


  reply	other threads:[~2024-04-10 17:19 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-10 17:19 [PATCH 00/18] HID: Include current HID-BPF fixes in tree Benjamin Tissoires
2024-04-10 17:19 ` Benjamin Tissoires [this message]
2024-04-10 17:19 ` [PATCH 02/18] HID: bpf: add first in-tree HID-BPF fix for the XPPen Artist 24 Benjamin Tissoires
2024-04-11  7:09   ` Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 03/18] HID: bpf: add in-tree HID-BPF fix for the XPPen Artist 16 Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 04/18] HID: bpf: add in-tree HID-BPF fix for the HP Elite Presenter Mouse Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 05/18] HID: bpf: add in-tree HID-BPF fix for the IOGear Kaliber Gaming MMOmentum mouse Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 06/18] HID: bpf: add in-tree HID-BPF fix for the Wacom ArtPen Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 07/18] HID: bpf: add in-tree HID-BPF fix for the XBox Elite 2 over Bluetooth Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 08/18] HID: bpf: add in-tree HID-BPF fix for the Huion Kamvas Pro 19 Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 09/18] HID: bpf: add in-tree HID-BPF fix for the Raptor Mach 2 Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 10/18] selftests/hid: import base_device.py from hid-tools Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 11/18] selftests/hid: add support for HID-BPF pre-loading before starting a test Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 12/18] selftests/hid: tablets: reduce the number of pen state Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 13/18] selftests/hid: tablets: add a couple of XP-PEN tablets Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 14/18] selftests/hid: tablets: also check for XP-Pen offset correction Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 15/18] selftests/hid: add Huion Kamvas Pro 19 tests Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 16/18] selftests/hid: import base_gamepad.py from hid-tools Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 17/18] selftests/hid: move the gamepads definitions in the test file Benjamin Tissoires
2024-04-10 17:19 ` [PATCH 18/18] selftests/hid: add tests for the Raptor Mach 2 joystick Benjamin Tissoires
2024-05-06 14:36 ` [PATCH 19/18] selftests/hid: skip tests with HID-BPF if udev-hid-bpf is not installed bentiss
2024-05-07  5:43   ` Peter Hutterer
2024-05-07 15:02 ` [PATCH 00/18] HID: Include current HID-BPF fixes in tree Benjamin Tissoires

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