pywinusb无法读到数据

使用官方的pywinusb-master中的raw_data.py这个demo 无法读取到鼠标hib设备的数据，能够读到pid，vid

device.set_raw_data_handler(sample_handler)执行完以后，就一直收不到数据。

#!/usr/bin/env python
# -*- coding: utf-8 -*-

#
"""
Handling raw data inputs example
"""
from time import sleep
from msvcrt import kbhit

import pywinusb.hid as hid

def sample_handler(data):
    print("Raw data: {0}".format(data))

def raw_test():
    # simple test
    # browse devices...
    all_hids = hid.find_all_hid_devices()
    if all_hids:
        while True:
            print("Choose a device to monitor raw input reports:\n")
            print("0 => Exit")
            for index, device in enumerate(all_hids):
                device_name = unicode("{0.vendor_name} {0.product_name}" \
                        "(vID=0x{1:04x}, pID=0x{2:04x})"\
                        "".format(device, device.vendor_id, device.product_id))
                print("{0} => {1}".format(index+1, device_name))
            print("\n\tDevice ('0' to '%d', '0' to exit?) " \
                    "[press enter after number]:" % len(all_hids))
            index_option = raw_input()
            if index_option.isdigit() and int(index_option) <= len(all_hids):
                # invalid
                break;
        int_option = int(index_option)
        if int_option:
            device = all_hids[int_option-1]
            try:
                device.open()

                #set custom raw data handler
                device.set_raw_data_handler(sample_handler)

                print("\nWaiting for data...\nPress any (system keyboard) key to stop...")
                while not kbhit() and device.is_plugged():
                    #just keep the device opened to receive events
                    sleep(0.5)
                return
            finally:
                device.close()
    else:
        print("There's not any non system HID class device available")
#
if __name__ == '__main__':
    # first be kind with local encodings
    import sys
    if sys.version_info >= (3,):
        # as is, don't handle unicodes
        unicode = str
        raw_input = input
    else:
        # allow to show encoded strings
        import codecs
        sys.stdout = codecs.getwriter('mbcs')(sys.stdout)
    raw_test()

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