seat: implement per-device keymaps

toml-spec/spec/spec.generated.json

@@ -790,6 +790,10 @@
               "description": ""
             }
           }
+        },
+        "keymap": {
+          "description": "The keymap to use for this device.\n\nThis overrides the global keymap. The keymap becomes active when a key is pressed.\n\n- Example:\n\n  ```toml\n  [[inputs]]\n  match.name = \"ZSA Technology Labs Inc ErgoDox EZ\"\n  keymap.name = \"external\"\n  ```\n",
+          "$ref": "#/$defs/Keymap"
         }
       },
       "required": [

toml-spec/spec/spec.generated.md

@@ -1519,6 +1519,22 @@ The table has the following fields:
 
   The value of this field should be an array of arrays of numbers.
 
+- `keymap` (optional):
+
+  The keymap to use for this device.
+  
+  This overrides the global keymap. The keymap becomes active when a key is pressed.
+  
+  - Example:
+  
+    ```toml
+    [[inputs]]
+    match.name = "ZSA Technology Labs Inc ErgoDox EZ"
+    keymap.name = "external"
+    ```
+
+  The value of this field should be a [Keymap](#types-Keymap).
+
 
 <a name="types-InputMatch"></a>
 ### `InputMatch`

toml-spec/spec/spec.yaml

@@ -1206,6 +1206,21 @@ Input:
           match.is-pointer = true
           transform-matrix = [[0.35, 0], [0, 0.35]]
           ```
+    keymap:
+      ref: Keymap
+      required: false
+      description: |
+        The keymap to use for this device.
+        
+        This overrides the global keymap. The keymap becomes active when a key is pressed.
+        
+        - Example:
+        
+          ```toml
+          [[inputs]]
+          match.name = "ZSA Technology Labs Inc ErgoDox EZ"
+          keymap.name = "external"
+          ```
 
 
 AccelProfile: