我使用cython-hidapi 进行了一个简单的测试(可安装为pip install hidapi - 请注意,这与 cmets 中链接的不同,但在功能上似乎相似)。我还从 macports 安装了hidapi-devel,但我不确定这是必要的,因为它在停用端口后继续工作。
通过修改示例 try.py 以使用 Microsoft USB 无线键盘/鼠标设备的 VID/PID,如下所示
from __future__ import print_function
import hid
import time
print("Opening the device")
h = hid.device()
h.open(1118, 2048) # A Microsoft wireless combo keyboard & mouse
print("Manufacturer: %s" % h.get_manufacturer_string())
print("Product: %s" % h.get_product_string())
print("Serial No: %s" % h.get_serial_number_string())
try:
while True:
d = h.read(64)
if d:
print('read: "{}"'.format(d))
finally:
print("Closing the device")
h.close()
使用$ sudo python try.py 运行我能够得到以下输出:
Opening the device
Manufacturer: Microsoft
Product: Microsoft® Nano Transceiver v2.0
Serial No: None
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
--8<-- snip lots of repeated lines --8<--
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
read: "[0, 0, 21, 0, 0, 0, 0, 0]"
read: "[0, 0, 21, 0, 0, 0, 0, 0]"
read: "[0, 0, 21, 0, 0, 0, 0, 0]"
read: "[0, 0, 21, 0, 0, 0, 0, 0]"
read: "[0, 0, 0, 0, 0, 0, 0, 0]"
read: "[0, 0, 4, 0, 0, 0, 0, 0]"
read: "[0, 0, 4, 22, 0, 0, 0, 0]"
read: "[0, 0, 4, 22, 0, 0, 0, 0]"
read: "[0, 0, 4, 22, 0, 0, 0, 0]"
read: "[0, 0, 4, 22, 0, 0, 0, 0]"
read: "[0, 0, 4, 22, 0, 0, 0, 0]"
read: "[0, 0, 4, 0, 0, 0, 0, 0]"
read: "[0, 0, 4, 0, 0, 0, 0, 0]"
read: "[0, 0, 4, 9, 0, 0, 0, 0]"
read: "[0, 0, 4, 9, 0, 0, 0, 0]"
read: "[0, 0, 4, 9, 0, 0, 0, 0]"
read: "[0, 0, 4, 9, 0, 0, 0, 0]"
read: "[0, 0, 4, 9, 7, 0, 0, 0]"
read: "[0, 0, 4, 9, 7, 0, 0, 0]"
read: "[0, 0, 7, 0, 0, 0, 0, 0]"
^CClosing the device
Traceback (most recent call last):
File "try.py", line 17, in <module>
d = h.read(64)
KeyboardInterrupt
我正在使用的特定设备似乎列举了多个用于键盘和鼠标的 HID 设备,所以你得到哪个似乎有点随机,但对于条形码扫描仪来说,它应该非常简单.