Attaching and detaching USB devices from a virtual machine used for gaming is quite annoying. First of all, to detach them one does need to run a command on the host somehow.
ssh works, but it's not very convenient, so let's make something better!
This tool is an attempt to make it a little better. It polls displays' input source status via DDC and runs appropriate command when input gets switched.
Combined with virt-usb tool, which wraps libvirt API, USB devices can follow input source selection!
By default ddcpoll look for config.toml in its working directory, but -f flag can be used to override this.
The configuration format is quite simple TOML file:
# DELL
[[displays]]
serial = "GH85D64F019S"
feature = 96
# primary output for desktop
[[displays.actions]]
value = 16
command = "./virt-usb --detach --domain gamez --devices 1532:001c 0f39:0825"
# secondary output for gamez
[[displays.actions]]
value = 15
command = "./virt-usb --attach --domain gamez --devices 1532:001c 0f39:0825"Currently it uses TOML 0.4, which doesn't support hexadecimal literals.
This project is licensed under MIT license.