Python libusb：缺乏USB访问权限

问题描述

我试图连接到我的USB条形码阅读器，但遇到在Mac OS 10.14.6下无法打开它的权利。我正在尝试使用此库：https://github.com/vpelletier/python-libusb1缺少文档有点烦人。

import usb1
vendOR_ID = 8208
PRODUCT_ID = 30264
INTERFACE = 0
with usb1.USBContext() as context:
    handle = context.openByvendorIDAndProductID(
        vendOR_ID,PRODUCT_ID,skip_on_error=False,)
    if handle is None:
        # Device not present,or user is not allowed to access device.
        print("no handle")
    with handle.claimInterface(INTERFACE):
        print("handle = ",handle)
        # Do stuff with endpoints on claimed interface.
        while True:
          data = handle.bulkRead(ENDPOINT,BUFFER_SIZE)
          # Process data...

有人知道该怎么做吗？错误是：

USBErrorAccess                            Traceback (most recent call last)
<ipython-input-1-217d9879b039> in <module>
12         # Device not present,or user is not allowed to access device.
13         print("no handle")
---> 14     with handle.claimInterface(INTERFACE):
15         print("handle = ",handle)
16         # Do stuff with endpoints on claimed interface.

/Applications/anaconda3/lib/python3.7/site-packages/usb1/__init__.py in claimInterface(self,interface)
1307         """
1308         mayRaiseUSBError(
-> 1309             libusb1.libusb_claim_interface(self.__handle,interface),1310         )
1311         return _ReleaseInterface(self,interface)

/Applications/anaconda3/lib/python3.7/site-packages/usb1/__init__.py in mayRaiseUSBError(value,__raiseUSBError)
131     ):
132     if value < 0:
--> 133         __raiseUSBError(value)
134     return value
135

/Applications/anaconda3/lib/python3.7/site-packages/usb1/__init__.py in raiseUSBError(value,__STATUS_TO_EXCEPTION_DICT,__USBError)
123         __USBError=USBError,124     ):
--> 125     raise __STATUS_TO_EXCEPTION_DICT.get(value,__USBError)(value)
126
127 def mayRaiseUSBError(

USBErrorAccess: LIBUSB_ERROR_ACCESS [-3]

有一些提示：

似乎我们应该在某个地方设置权限，但是这些页面是关于ubuntu的： => https://askubuntu.com/questions/978552/how-do-i-make-libusb-work-as-non-root => https://github.com/vpelletier/python-libusb1/issues/34
以下是有关Mac OS的一些信息，但我不清楚： => IOCreatePlugInInterfaceForService returns mysterious error => OpenCV command line app can't access camera under macOS Mojave

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

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libusb python