Workaround for buttonless Controllers

evdevremapkeys/evdevremapkeys.py

@@ -72,10 +72,7 @@ async def handle_events(
                     output.syn()
     finally:
         del registered_devices[input.path]
-        print(
-            "Unregistered: %s, %s, %s" % (input.name, input.path, input.phys),
-            flush=True,
-        )
+        print(f"Unregistered: {input.name} ({input.path}) {input.phys}", flush=True)
         input.close()
 
 
@@ -302,14 +299,21 @@ def register_device(device, loop: AbstractEventLoop):
     input = find_input(device)
     if input is None:
         return None
+
     input.grab()
 
     caps = input.capabilities()
     # EV_SYN is automatically added to uinput devices
     del caps[ecodes.EV_SYN]
 
     remappings = device["remappings"]
-    extended = set(caps[ecodes.EV_KEY])
+    if ecodes.EV_KEY not in caps:
+        extended = set()
+    else:
+        extended = set(caps[ecodes.EV_KEY])
+
+    if "dummy_buttons" in device:  # add dummy buttons
+        extended |= set(device["dummy_buttons"])
 
     modifier_groups = []
     if "modifier_groups" in device:
@@ -328,8 +332,16 @@ def flatmap(lst):
                 extended.update([remapping["code"]])
 
     caps[ecodes.EV_KEY] = list(extended)
-    output = UInput(caps, name=device["output_name"])
+
+    extra_options = {"name": device["output_name"]}
+
+    for k, v in device.items():
+        if k in ["vendor", "product", "version", "bustype"]:
+            extra_options[k] = v
+
+    output = UInput(caps, **extra_options)
     print("Registered: %s, %s, %s" % (input.name, input.path, input.phys), flush=True)
+
     task = loop.create_task(
         handle_events(input, output, remappings, modifier_groups), name=input.name
     )

examples/advanced_config.yaml

@@ -47,3 +47,9 @@ devices:
     - code: KEY_A
       value: [1,0,1,0]
       repeat: true
+- input_name: "Thrustmaster T-Rudder" # Example for using rudder pedals without buttons (and a changed productid to make wine recognize it)
+  output_name: "T-Rudder"
+  product: 0x1234
+  dummy_buttons: [304, 305]
+  remappings: {}
+