added support for disabling nodes and devices through conf

src/config/main.lua.d/50-alsa-config.lua

@@ -17,6 +17,19 @@ alsa_monitor.properties = {
 
 alsa_monitor.rules = {
   -- An array of matches/actions to evaluate.
+  -- 
+  -- If you want to disable some devices or nodes, you can apply properties per device as the following example.
+  -- The name can be found by running pw-cli ls Device, or pw-cli dump Device
+  --{
+  --  matches = {
+  --    {
+  --      { "device.name", "matches", "name_of_some_disabled_card" },
+  --    },
+  --  },
+  --  apply_properties = {
+  --    ["device.disabled"] = true,
+  --  },
+  --}
   {
     -- Rules for matching a device or node. It is an array of
     -- properties that all need to match the regexp. If any of the

src/scripts/monitors/alsa.lua

@@ -168,6 +168,9 @@ function createNode(parent, id, type, factory, properties)
 
   -- apply properties from config.rules
   rulesApplyProperties(properties)
+  if properties["node.disabled"] then
+    return
+  end
 
   -- create the node
   local node = Node("adapter", properties)
@@ -254,6 +257,9 @@ function prepareDevice(parent, id, type, factory, properties)
 
   -- apply properties from config.rules
   rulesApplyProperties(properties)
+  if properties["device.disabled"] then
+    return
+  end
 
   -- override the device factory to use ACP
   if properties["api.alsa.use-acp"] then