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fix: ship a numbered udev rule file for vial since otherwise it gets overwritten by systemd's udev file #71

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aaron merged 1 commits from feature/vial into main 2026-08-09 14:45:34 +02:00
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modules/nixos/vial.nix
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@@ -3,11 +3,24 @@
{ {
# Vial-capable keyboards (lily58 pro r2g) expose a second, non-keyboard raw # Vial-capable keyboards (lily58 pro r2g) expose a second, non-keyboard raw
# HID interface that vial.rocks drives over WebHID. Its /dev/hidraw* node is # HID interface that vial.rocks drives over WebHID. Its /dev/hidraw* node is
# root-only by default, so chromium cannot open the device without this rule. # root-only by default, so neither chromium nor the native app can open it.
services.udev.extraRules = '' #
# This has to ship as a numbered rules file rather than via
# services.udev.extraRules: extraRules lands in 99-local.rules, but the
# builtin that turns TAG+="uaccess" into an actual ACL is invoked from
# systemd's 73-seat-late.rules. A tag set at 99 is set too late to be seen,
# so the device ends up correctly tagged and still unreadable. 60- sorts
# safely ahead of 73.
services.udev.packages = [
(pkgs.writeTextFile {
name = "vial-udev-rules";
destination = "/lib/udev/rules.d/60-vial.rules";
# Vial firmware advertises itself through a magic USB serial, so this # Vial firmware advertises itself through a magic USB serial, so this
# matches any vial board rather than just the lily58. uaccess hands the # matches any vial board rather than just the lily58. uaccess hands the
# device to whoever owns the active seat, no group membership needed. # device to whoever owns the active seat, no group membership needed.
text = ''
KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{serial}=="*vial:f64c2b3c*", TAG+="uaccess" KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{serial}=="*vial:f64c2b3c*", TAG+="uaccess"
''; '';
})
];
} }