python - pywinusb.hid 原始数据不显示

Question

我正在使用 Windows 10 和 pywinusb 打开 USB 设备并处理原始数据，如下所示：

import sys
import pywinusb.hid as hid
from time import sleep
import atexit
import numpy as np

vid = my_VID
pid = my_PID


def readData(data):
    np.set_printoptions(formatter={'int': hex})
    s = np.array(list(data))
    print(s)


hid_filter = hid.HidDeviceFilter(vendor_id=my_VID, product_id=my_PID)
hid_devices = hid_filter.get_devices()
if len(hid_devices) == 0:
    print('No Device Found.')
    exit(-1)
my_device = hid_devices[0]
print()
print("**************************DEVICE**************************\n")
print("Product Name     :  ", my_device.product_name)
print("Vendor Name      :  ", my_device.vendor_name)
print("Version Number   :  ", my_device.version_number)
print("\n**********************************************************\n")

my_device.open()
my_device.set_raw_data_handler(readData)
print("***************************DATA***************************\n")

try:
    while my_device.is_plugged():
        sleep(0.5)
except Exception as e:
    print('Termination -> ' + str(e))

如上所示，它打开了第一个设备：