Patch from upstream to fix #63, fix #20

sohkd/src/uinput.rs

@@ -3,6 +3,12 @@ use evdev::{
  AttributeSet, Key, RelativeAxisType, SwitchType,
 };
 
+use nix::ioctl_none;
+use std::fs::File;
+use std::os::unix::io::AsRawFd;
+
+ioctl_none!(rfkill_noinput, b'R', 1);
+
 pub fn create_uinput_device() -> Result<VirtualDevice, Box<dyn std::error::Error>> {
  let mut keys = AttributeSet::<Key>::new();
  for key in get_all_keys() {
@@ -14,6 +20,21 @@ pub fn create_uinput_device() -> Result<VirtualDevice, Box<dyn std::error::Error
  relative_axes.insert(axis);
  }
 
+ // We have to disable rfkill-input to avoid blocking all radio devices. When
+ // a new device (virtual or physical) with the SW_RFKILL_ALL capability bit
+ // set appears, rfkill reacts immediately depending on the value bit. This
+ // value bit defaults to unset, which causes rfkill to use its default mode
+ // (which is eop - emergency power off). The uinput API does not give any
+ // way to set the corresponding value bit before creating the device, and we
+ // have no way to avoid rfkill acting upon the device creation or to change
+ // its default mode. Thus, we disable rfkill-input temporarily, hopefully
+ // fast enough that it won't impact anyone. rfkill-input will be enabled
+ // again when the file gets closed.
+ let rfkill_file = File::open("/dev/rfkill")?;
+ unsafe {
+ rfkill_noinput(rfkill_file.as_raw_fd())?;
+ }
+
  let device = VirtualDeviceBuilder::new()?
  .name("sohkd virtual output")
  .with_keys(&keys)?