On 10/1/25 10:39, Alyssa Ross wrote:
Demi Marie Obenour <demiobenour@gmail.com> writes:
This replaces the mdevd uevent daemon with systemd-udevd, which supports much more hardware and is therefore to be preferred for a full desktop environment. Various Wayland compositors integrate with systemd-udevd, allowing them to discover devices as they appear rather than having to only use devices plugged in when the compositor is started. Additionally, systemd-udevd has quirks for various devices that are needed to support the wide variety of hardware end-users have.
Just want to note that this implementation currently doesn't, because it doesn't install the hardware database. (I noticed this while debugging the modprobe thing.)
Nice catch. Thank you!
I was able to get it to work with the following diff. I don't think it needs to be in this commit, so I'll just add this separately once we have the basic udev implementation in, but I'm posting it here now so we don't end up duplicating work. :)
diff --git a/host/rootfs/default.nix b/host/rootfs/default.nix index 8abe108..b8e72f2 100644 --- a/host/rootfs/default.nix +++ b/host/rootfs/default.nix @@ -84,6 +84,15 @@ let usrPackages = [ appvm kernel.modules firmware kmod kmod.lib netvm mesa dejavu_fonts westonLite + + (runCommand "hwdb.bin" { + nativeBuildInputs = [ systemd ]; + } '' + mkdir -p $out/lib/systemd/hwdb etc/udev + cp -R ${systemd}/lib/udev/hwdb.d etc/udev + systemd-hwdb update -sr . + mv etc/udev/hwdb.bin $out/lib/systemd/hwdb + '') ];
appvms = {
Could this just be a symlink? -- Sincerely, Demi Marie Obenour (she/her/hers)