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|
{
config,
lib,
pkgs,
...
}:
let
cfg = config.programs.qgroundcontrol;
in
{
options = {
programs.qgroundcontrol = {
enable = lib.mkEnableOption "qgroundcontrol";
package = lib.mkPackageOption pkgs "qgroundcontrol" {};
blacklistModemManagerFromTTYUSB = lib.mkOption {
type = lib.types.bool;
default = true;
description = ''
Disallow ModemManager from interfering with serial connections that QGroundControl might use.
Note that if you use a modem that's connected via USB, you might want to disable this option.
'';
};
};
};
config = lib.mkIf cfg.enable {
# ModemManager is known to interfere with serial connections;
# QGC recommends disabling it, but we don't want to if we can avoid it
# Instead, we blacklist tty devices using udev rules, which is a more targeted approach
services.udev = lib.mkIf cfg.blacklistModemManagerFromTTYUSB {
enable = true;
extraRules = ''
# nixos/qgroundcontrol: Blacklist ttyUSB devices from ModemManager
SUBSYSTEM=="tty", KERNEL=="ttyUSB*", ENV{ID_MM_DEVICE_IGNORE}="1"
'';
};
# Security wrapper
security.wrappers.qgroundcontrol = {
source = lib.getExe cfg.package;
owner = "root"; # Sensible default; not setuid so this is not a security risk
group = "tty";
setgid = true;
};
};
meta.maintainers = pkgs.qgroundcontrol.meta.maintainers;
}
|
