Only reload snd_usb_audio if 1824c not initialised

2024-05-04 13:08:09 +01:00 · 2024-05-04 13:08:09 +01:00 · 352db47931
commit 352db47931
parent 2b8f9c4ae7
1 changed files with 5 additions and 2 deletions
--- a/modules/hardware/presonus-studio.nix
+++ b/modules/hardware/presonus-studio.nix
@ -36,8 +36,11 @@ in {
        kmod
      ];
      script = ''
-        rmmod snd_usb_audio
-        insmod /run/booted-system/kernel-modules/lib/modules/$(uname -r)/extra/snd-usb-audio.ko.xz
+        # Only reload if device hasn't been initialised
+        if ! cat /proc/asound/card*/usbmixer | grep -q "Mute Main Out Switch"; then
+          rmmod snd_usb_audio
+          insmod /run/booted-system/kernel-modules/lib/modules/$(uname -r)/extra/snd-usb-audio.ko.xz
+        fi
      '';
    };