dual mouse mode

configs/os/udev/v2-hdmi-rpi3.rules

@@ -3,3 +3,4 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="3f801000.csi|3f801000.csi1", ATTR{name}=="unicam-image", GROUP="kvmd", SYMLINK+="kvmd-video", TAG+="systemd"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"

configs/os/udev/v2-hdmi-rpi4.rules

@@ -3,3 +3,4 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="fe801000.csi|fe801000.csi1", ATTR{name}=="unicam-image", GROUP="kvmd", SYMLINK+="kvmd-video", TAG+="systemd"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"

configs/os/udev/v2-hdmi-zerow.rules

@@ -3,3 +3,4 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="20801000.csi|20801000.csi1", ATTR{name}=="unicam-image", GROUP="kvmd", SYMLINK+="kvmd-video", TAG+="systemd"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"

configs/os/udev/v2-hdmiusb-generic.rules

@@ -3,3 +3,4 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", SUBSYSTEMS=="usb", ATTR{index}=="0", GROUP="kvmd", SYMLINK+="kvmd-video"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"

configs/os/udev/v2-hdmiusb-rpi4.rules

@@ -3,3 +3,4 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", PROGRAM="/usr/bin/kvmd-udev-hdmiusb-check rpi4 %b", ATTR{index}=="0", GROUP="kvmd", SYMLINK+="kvmd-video"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"

configs/os/udev/v3-hdmi-rpi4.rules

@@ -3,4 +3,5 @@
 KERNEL=="video[0-9]*", SUBSYSTEM=="video4linux", KERNELS=="fe801000.csi|fe801000.csi1", ATTR{name}=="unicam-image", GROUP="kvmd", SYMLINK+="kvmd-video", TAG+="systemd"
 KERNEL=="hidg0", GROUP="kvmd", SYMLINK+="kvmd-hid-keyboard"
 KERNEL=="hidg1", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse"
+KERNEL=="hidg2", GROUP="kvmd", SYMLINK+="kvmd-hid-mouse-alt"
 KERNEL=="sd[a-z]", SUBSYSTEM=="block", KERNELS=="1-1.4:1.0", GROUP="kvmd", SYMLINK+="kvmd-msd-aum"

kvmd/apps/otg/__init__.py

@@ -212,6 +212,12 @@ def _cmd_start(config: Section) -> None:
             absolute=config.kvmd.hid.mouse.absolute,
             horizontal_wheel=config.kvmd.hid.mouse.horizontal_wheel,
         ))
+        if config.kvmd.hid.mouse_alt.device:
+            logger.info("===== Required HID-Mouse ALT =====")
+            _create_hid(gadget_path, config_path, 2, make_mouse_hid(
+                absolute=(not config.kvmd.hid.mouse.absolute),
+                horizontal_wheel=config.kvmd.hid.mouse_alt.horizontal_wheel,
+            ))
 
     if config.kvmd.msd.type == "otg":
         logger.info("===== Required MSD =====")

kvmd/plugins/hid/otg/__init__.py

@@ -24,8 +24,10 @@ from typing import Tuple
 from typing import Dict
 from typing import Iterable
 from typing import AsyncGenerator
+from typing import Optional
 from typing import Any
 
+from .... import tools
 from .... import aiomulti
 
 from ....yamlconf import Option
@@ -43,11 +45,12 @@ from .mouse import MouseProcess
 
 
 # =====
-class Plugin(BaseHid):
+class Plugin(BaseHid):  # pylint: disable=too-many-instance-attributes
     def __init__(  # pylint: disable=super-init-not-called
         self,
         keyboard: Dict[str, Any],
         mouse: Dict[str, Any],
+        mouse_alt: Dict[str, Any],
         noop: bool,
         udc: str,  # XXX: Not from options, see /kvmd/apps/kvmd/__init__.py for details
     ) -> None:
@@ -56,8 +59,25 @@ class Plugin(BaseHid):
 
         self.__udc = UsbDeviceController(udc)
 
-        self.__keyboard_proc = KeyboardProcess(udc=self.__udc, noop=noop, notifier=self.__notifier, **keyboard)
+        common = {
-        self.__mouse_proc = MouseProcess(udc=self.__udc, noop=noop, notifier=self.__notifier, **mouse)
+            "udc": self.__udc,
+            "noop": noop,
+            "notifier": self.__notifier,
+        }
+
+        self.__keyboard_proc = KeyboardProcess(**common, **keyboard)
+        self.__mouse_current = self.__mouse_proc = MouseProcess(**common, **mouse)
+
+        self.__mouse_alt_proc: Optional[MouseProcess] = None
+        self.__output_to_mouse: Dict[str, MouseProcess] = {}
+        self.__mouse_to_output: Dict[MouseProcess, str] = {}
+        if mouse_alt["device_path"]:
+            self.__mouse_alt_proc = MouseProcess(absolute=(not mouse["absolute"]), **common, **mouse_alt)
+            self.__output_to_mouse = {
+                "usb": (self.__mouse_proc if mouse["absolute"] else self.__mouse_alt_proc),
+                "usb_rel": (self.__mouse_alt_proc if mouse["absolute"] else self.__mouse_proc),
+            }
+            self.__mouse_to_output = tools.swapped_kvs(self.__output_to_mouse)
 
     @classmethod
     def get_plugin_options(cls) -> Dict:
@@ -76,6 +96,14 @@ class Plugin(BaseHid):
                 "absolute":         Option(True, type=valid_bool),
                 "horizontal_wheel": Option(True, type=valid_bool),
             },
+            "mouse_alt": {
+                "device":           Option("",   type=valid_abs_path, if_empty="", unpack_as="device_path"),
+                "select_timeout":   Option(0.1,  type=valid_float_f01),
+                "queue_timeout":    Option(0.1,  type=valid_float_f01),
+                "write_retries":    Option(150,  type=valid_int_f1),
+                # No absolute option here, initialized by (not mouse.absolute)
+                "horizontal_wheel": Option(True, type=valid_bool),
+            },
             "noop": Option(False, type=valid_bool),
         }
 
@@ -83,11 +111,12 @@ class Plugin(BaseHid):
         self.__udc.find()
         self.__keyboard_proc.start()
         self.__mouse_proc.start()
+        if self.__mouse_alt_proc:
+            self.__mouse_alt_proc.start()
 
     async def get_state(self) -> Dict:
         keyboard_state = await self.__keyboard_proc.get_state()
-        mouse_state = await self.__mouse_proc.get_state()
+        mouse_state = await self.__mouse_current.get_state()
-        outputs: Dict = {"available": [], "active": ""}
         return {
             "online": True,
             "busy": False,
@@ -99,9 +128,15 @@ class Plugin(BaseHid):
                     "scroll": keyboard_state["scroll"],
                     "num": keyboard_state["num"],
                 },
-                "outputs": outputs,
+                "outputs": {"available": [], "active": ""},
+            },
+            "mouse": {
+                "outputs": {
+                    "available": list(self.__output_to_mouse),
+                    "active": (self.__mouse_to_output[self.__mouse_current] if self.__mouse_alt_proc else ""),
+                },
+                **mouse_state,
             },
-            "mouse": {**mouse_state, "outputs": outputs},
         }
 
     async def poll_state(self) -> AsyncGenerator[Dict, None]:
@@ -115,13 +150,17 @@ class Plugin(BaseHid):
 
     async def reset(self) -> None:
         self.__keyboard_proc.send_reset_event()
-        self.__mouse_proc.send_reset_event()
+        self.__mouse_current.send_reset_event()
 
     async def cleanup(self) -> None:
         try:
             self.__keyboard_proc.cleanup()
         finally:
-            self.__mouse_proc.cleanup()
+            try:
+                self.__mouse_proc.cleanup()
+            finally:
+                if self.__mouse_alt_proc:
+                    self.__mouse_alt_proc.cleanup()
 
     # =====
 
@@ -129,17 +168,25 @@ class Plugin(BaseHid):
         self.__keyboard_proc.send_key_events(keys)
 
     def send_mouse_button_event(self, button: str, state: bool) -> None:
-        self.__mouse_proc.send_button_event(button, state)
+        self.__mouse_current.send_button_event(button, state)
 
     def send_mouse_move_event(self, to_x: int, to_y: int) -> None:
-        self.__mouse_proc.send_move_event(to_x, to_y)
+        self.__mouse_current.send_move_event(to_x, to_y)
 
     def send_mouse_relative_event(self, delta_x: int, delta_y: int) -> None:
-        self.__mouse_proc.send_relative_event(delta_x, delta_y)
+        self.__mouse_current.send_relative_event(delta_x, delta_y)
 
     def send_mouse_wheel_event(self, delta_x: int, delta_y: int) -> None:
-        self.__mouse_proc.send_wheel_event(delta_x, delta_y)
+        self.__mouse_current.send_wheel_event(delta_x, delta_y)
+
+    def set_params(self, keyboard_output: Optional[str]=None, mouse_output: Optional[str]=None) -> None:
+        _ = keyboard_output
+        if mouse_output != self.__mouse_to_output[self.__mouse_current]:
+            if mouse_output in self.__output_to_mouse:
+                self.__mouse_current.send_clear_event()
+                self.__mouse_current = self.__output_to_mouse[mouse_output]
+                self.__notifier.notify()
 
     def clear_events(self) -> None:
         self.__keyboard_proc.send_clear_event()
-        self.__mouse_proc.send_clear_event()
+        self.__mouse_current.send_clear_event()