A silencer for evdev
Quick and dirty disable your /dev/input/ event sources for the rest of your
system. evkill grabs evdev event sources in exclusive mode. This has the
effect that no event will be forwarded as long as evkill runs. For portability
the executable is statically linked with musl and cross compiled for various different
architectures.
If you ever tried to disable a piece of hardware, you probably found yourself considering the following options:
- Unplug the device
- Unload the driver for the device (
modprobe -r) - Configure the driver to ignore the device
- Configure your X server to not forward device events
- Use
evkill
Option 1. is very hard if your device is a hardware button soldered onto the
board. In case you attempt 2. for general purpose device or event drivers such
as usbhid or evdev, you will end up with a deaf system. For most drivers 3. is
only really possible at compile time or at run-time through option number 4. But
who wants to mess around with X server configuration if you only need to disable
a device quick an dirty? In that case use evkill.
evkill send the ioctl EVIOCGRAB to the input device. Evdev will then grant
exclusive access to the input device for the evkill process. Which will on
the other hand disable event forwarding to every other process as long as
evkill runs. Killing the evdev process will enable enable the input device
again.
$ curl https://raw.githubusercontent.com/Enteee/evkill/master/install.sh | shusage: evkill <device>
$ sudo evkill /dev/input/event/0- Install nix:
curl -L https://nixos.org/nix/install | sh nix-build
Note: Find the built binary under: result/bin/evkill
Using the power of nix, evkill supports cross compilation.
- reMarkable:
nix-build --arg crossTarget '"armv7l-unknown-linux-musleabi"' - Raspberry Pi:
nix-build --arg crossTarget '"armv6l-unknown-linux-musleabi"'
We encourage you to contribute to this project 🔧 🚀 ! Please check out the Contributing guide for guidelines about how to proceed. Join us!
Enter a fully fledged and ready for compilation development by running
nix-shell. From there, you can build evkill with cargo build.
