Jul 30, 2025 · Jul 30, 2025
diff --git a/micropython/usb/usb-device-hid/usb/device/hid.py b/micropython/usb/usb-device-hid/usb/device/hid.py
 _INTERFACE_SUBCLASS_NONE = const(0x00)
 _INTERFACE_SUBCLASS_BOOT = const(0x01)

 # These values will only make sense when interface subclass
 # is 0x01, which indicates boot protocol support.
 _INTERFACE_PROTOCOL_NONE = const(0x00)
 _INTERFACE_PROTOCOL_KEYBOARD = const(0x01)
 _INTERFACE_PROTOCOL_MOUSE = const(0x02)
            itf_num,
            1,
            _INTERFACE_CLASS,
            _INTERFACE_SUBCLASS_NONE,
            _INTERFACE_SUBCLASS_NONE
            if self.protocol == _INTERFACE_PROTOCOL_NONE
            else _INTERFACE_SUBCLASS_BOOT,
            self.protocol,
            len(strs) if self.interface_str else 0,
        )
        desc.endpoint(self._int_ep, "interrupt", 8, 8)

        self.idle_rate = 0
        self.protocol = 0

        # This variable is reused to track boot protocol status.
        # 0 for boot protocol, 1 for report protocol
        # According to Device Class Definition for Human Interface Devices (HID) v1.11
        # Appendix F.5, the device comes up in non-boot mode by default.
        self.protocol = 1

    def num_eps(self):
        return 1
                    if desc_type == _DESC_HID_TYPE:
                        return self.get_hid_descriptor()
                    if desc_type == _DESC_REPORT_TYPE:
                        # Reset to report protocol when report descriptor is requested
                        self.protocol = 1
                        return self.report_descriptor
            elif req_type == _REQ_TYPE_CLASS:
                # HID Spec p50: 7.2 Class-Specific Requests
Original file line number	Diff line number	Diff line change
Expand Up		@@ -34,6 +34,8 @@
		_INTERFACE_SUBCLASS_NONE = const(0x00)
		_INTERFACE_SUBCLASS_BOOT = const(0x01)

		# These values will only make sense when interface subclass
		# is 0x01, which indicates boot protocol support.
		_INTERFACE_PROTOCOL_NONE = const(0x00)
		_INTERFACE_PROTOCOL_KEYBOARD = const(0x01)
		_INTERFACE_PROTOCOL_MOUSE = const(0x02)
Expand DownExpand Up		@@ -130,7 +132,9 @@ def desc_cfg(self, desc, itf_num, ep_num, strs):
		itf_num,
		1,
		_INTERFACE_CLASS,
		_INTERFACE_SUBCLASS_NONE,
		_INTERFACE_SUBCLASS_NONE
		if self.protocol == _INTERFACE_PROTOCOL_NONE
		else _INTERFACE_SUBCLASS_BOOT,
		self.protocol,
		len(strs) if self.interface_str else 0,
		)
Expand All		@@ -148,7 +152,12 @@ def desc_cfg(self, desc, itf_num, ep_num, strs):
		desc.endpoint(self._int_ep, "interrupt", 8, 8)

		self.idle_rate = 0
		self.protocol = 0

		# This variable is reused to track boot protocol status.
		# 0 for boot protocol, 1 for report protocol
		# According to Device Class Definition for Human Interface Devices (HID) v1.11
		# Appendix F.5, the device comes up in non-boot mode by default.
		self.protocol = 1

		def num_eps(self):
		return 1
Expand DownExpand Up		@@ -197,6 +206,8 @@ def on_interface_control_xfer(self, stage, request):
		if desc_type == _DESC_HID_TYPE:
		return self.get_hid_descriptor()
		if desc_type == _DESC_REPORT_TYPE:
		# Reset to report protocol when report descriptor is requested
		self.protocol = 1
		return self.report_descriptor
		elif req_type == _REQ_TYPE_CLASS:
		# HID Spec p50: 7.2 Class-Specific Requests
Expand Down