Miroirs/rkvm
1
0
Fork 0
mirror of https://github.com/htrefil/rkvm.git synced 2024-11-16 07:47:24 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'fix-nonsense-abs-min-max'

Browse source
This commit is contained in:
Jan Trefil 2023-08-25 11:55:20 +02:00
commit 5a3685f535
1 changed files with 34 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
rkvm-input/src/interceptor.rs
View file

@ -214,6 +214,40 @@ impl Interceptor {
return Err(OpenError::NotAppliable);
}
// Some buggy kernels can report nonsense abs info, so check for it and disable the axes.
for i in 0..glue::ABS_CNT {
let abs_info = unsafe { glue::libevdev_get_abs_info(evdev.as_ptr(), i).as_ref() };
let abs_info = match abs_info {
Some(abs_info) => abs_info,
None => continue,
};
// See Linux source at drivers/input/misc/uinput.c#L408 commit 93f5de5f648d2b1ce3540a4ac71756d4a852dc23.
let min = abs_info.minimum;
let max = abs_info.maximum;
if min != 0 || max != 0 && max < min {
log::warn!(
"Detected nonsense min ({}) and max ({}) values for absolute axis {}, disabling it",
min,
max,
i
);
let ret =
unsafe { glue::libevdev_disable_event_code(evdev.as_ptr(), glue::EV_ABS, i) };
if ret < 0 {
unsafe {
glue::libevdev_free(evdev.as_ptr());
}
return Err(Error::from_raw_os_error(-ret).into());
}
}
}
unsafe {
glue::libevdev_set_id_bustype(evdev.as_ptr(), glue::BUS_VIRTUAL as _);
}