diff --git a/stubs/usb/backend/libusb1.pyi b/stubs/usb/backend/libusb1.pyi
deleted file mode 100644
--- a/stubs/usb/backend/libusb1.pyi
+++ /dev/null
@@ -1,101 +0,0 @@
-# Stubs for usb.backend.libusb1 (Python 3)
-#
-# NOTE: This dynamically typed stub was automatically generated by stubgen.
-
-from ctypes import *
-import usb.libloader as _objfinalizer
-import usb.libloader
-from typing import Any, Optional
-
-LIBUSB_ERROR_IO: int
-LIBUSB_ERROR_INVALID_PARAM: int
-LIBUSB_ERROR_ACCESS: int
-LIBUSB_ERROR_NO_DEVICE: int
-LIBUSB_ERROR_NOT_FOUND: int
-LIBUSB_ERROR_BUSY: int
-LIBUSB_ERROR_TIMEOUT: int
-LIBUSB_ERROR_OVERFLOW: int
-LIBUSB_ERROR_PIPE: int
-LIBUSB_ERROR_INTERRUPTED: int
-LIBUSB_ERROR_NO_MEM: int
-LIBUSB_ERROR_NOT_SUPPORTED: int
-LIBUSB_TRANSFER_ERROR: int
-LIBUSB_TRANSFER_TIMED_OUT: int
-LIBUSB_TRANSFER_CANCELLED: int
-LIBUSB_TRANSFER_STALL: int
-LIBUSB_TRANSFER_NO_DEVICE: int
-LIBUSB_TRANSFER_OVERFLOW: int
-
-class _libusb_endpoint_descriptor(Structure): ...
-class _libusb_interface_descriptor(Structure): ...
-class _libusb_interface(Structure): ...
-class _libusb_config_descriptor(Structure): ...
-class _libusb_device_descriptor(Structure): ...
-class _libusb_iso_packet_descriptor(Structure): ...
-class _libusb_transfer(Structure): ...
-
-class _Device(_objfinalizer.AutoFinalizedObject):
-    devid: Any = ...
-    def __init__(self, devid: Any) -> None: ...
-
-class _WrapDescriptor:
-    obj: Any = ...
-    desc: Any = ...
-    def __init__(self, desc: Any, obj: Optional[Any] = ...) -> None: ...
-    def __getattr__(self, name: Any): ...
-
-class _ConfigDescriptor(_objfinalizer.AutoFinalizedObject):
-    desc: Any = ...
-    def __init__(self, desc: Any) -> None: ...
-    def __getattr__(self, name: Any): ...
-
-class _DevIterator(_objfinalizer.AutoFinalizedObject):
-    dev_list: Any = ...
-    num_devs: Any = ...
-    def __init__(self, ctx: Any) -> None: ...
-    def __iter__(self) -> None: ...
-
-class _DeviceHandle:
-    handle: Any = ...
-    devid: Any = ...
-    def __init__(self, dev: Any) -> None: ...
-
-class _IsoTransferHandler(_objfinalizer.AutoFinalizedObject):
-    transfer: Any = ...
-    def __init__(self, dev_handle: Any, ep: Any, buff: Any, timeout: Any) -> None: ...
-    def submit(self, ctx: Optional[Any] = ...): ...
-
-class _LibUSB(usb.backend.IBackend):
-    lib: Any = ...
-    ctx: Any = ...
-    def __init__(self, lib: Any) -> None: ...
-    def enumerate_devices(self): ...
-    def get_device_descriptor(self, dev: Any): ...
-    def get_configuration_descriptor(self, dev: Any, config: Any): ...
-    def get_interface_descriptor(self, dev: Any, intf: Any, alt: Any, config: Any): ...
-    def get_endpoint_descriptor(self, dev: Any, ep: Any, intf: Any, alt: Any, config: Any): ...
-    def open_device(self, dev: Any): ...
-    def close_device(self, dev_handle: Any) -> None: ...
-    def set_configuration(self, dev_handle: Any, config_value: Any) -> None: ...
-    def get_configuration(self, dev_handle: Any): ...
-    def set_interface_altsetting(self, dev_handle: Any, intf: Any, altsetting: Any) -> None: ...
-    def claim_interface(self, dev_handle: Any, intf: Any) -> None: ...
-    def release_interface(self, dev_handle: Any, intf: Any) -> None: ...
-    def bulk_write(self, dev_handle: Any, ep: Any, intf: Any, data: Any, timeout: Any): ...
-    def bulk_read(self, dev_handle: Any, ep: Any, intf: Any, buff: Any, timeout: Any): ...
-    def intr_write(self, dev_handle: Any, ep: Any, intf: Any, data: Any, timeout: Any): ...
-    def intr_read(self, dev_handle: Any, ep: Any, intf: Any, buff: Any, timeout: Any): ...
-    def iso_write(self, dev_handle: Any, ep: Any, intf: Any, data: Any, timeout: Any): ...
-    def iso_read(self, dev_handle: Any, ep: Any, intf: Any, buff: Any, timeout: Any): ...
-    def ctrl_transfer(self, dev_handle: Any, bmRequestType: Any, bRequest: Any, wValue: Any, wIndex: Any, data: Any, timeout: Any): ...
-    def clear_halt(self, dev_handle: Any, ep: Any) -> None: ...
-    def reset_device(self, dev_handle: Any) -> None: ...
-    def is_kernel_driver_active(self, dev_handle: Any, intf: Any): ...
-    def detach_kernel_driver(self, dev_handle: Any, intf: Any) -> None: ...
-    def attach_kernel_driver(self, dev_handle: Any, intf: Any) -> None: ...
-
-def get_backend(find_library: Optional[Any] = ...): ...
-
-# Names in __all__ with no definition:
-#   LIBUSB_ERROR_OTHERLIBUSB_TRANSFER_COMPLETED
-#   LIBUSB_SUCESS