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-rw-r--r--rules.d/60-persistent-alsa.rules15
-rw-r--r--rules.d/Makefile.am3
2 files changed, 17 insertions, 1 deletions
diff --git a/rules.d/60-persistent-alsa.rules b/rules.d/60-persistent-alsa.rules
new file mode 100644
index 0000000..4f3cf6a
--- /dev/null
+++ b/rules.d/60-persistent-alsa.rules
@@ -0,0 +1,15 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION!="add|change", GOTO="persistent_alsa_end"
+SUBSYSTEM!="sound", GOTO="persistent_alsa_end"
+KERNEL!="controlC[0-9]*", GOTO="persistent_alsa_end"
+
+SUBSYSTEMS=="usb", ENV{ID_MODEL}=="", IMPORT{program}="usb_id --export %p"
+SUBSYSTEMS=="usb", ENV{ID_IFACE}="$attr{bInterfaceNumber}"
+ENV{ID_SERIAL}=="?*", ENV{ID_IFACE}=="?*", SYMLINK+="snd/by-id/$env{ID_BUS}-$env{ID_SERIAL}-$env{ID_IFACE}"
+ENV{ID_SERIAL}=="?*", ENV{ID_IFACE}=="", SYMLINK+="snd/by-id/$env{ID_BUS}-$env{ID_SERIAL}"
+
+IMPORT{program}="path_id %p"
+ENV{ID_PATH}=="?*", SYMLINK+="snd/by-path/$env{ID_PATH}"
+
+LABEL="persistent_alsa_end"
diff --git a/rules.d/Makefile.am b/rules.d/Makefile.am
index a6ee93f..65800ef 100644
--- a/rules.d/Makefile.am
+++ b/rules.d/Makefile.am
@@ -3,4 +3,5 @@ include $(top_srcdir)/Makefile.am.inc
udevrulesdir = $(udev_prefix)/lib/udev/rules.d
dist_udevrules_DATA = \
- 78-sound-card.rules
+ 78-sound-card.rules \
+ 60-persistent-alsa.rules