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 */ };