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https://lists.freebsd.org/pipermail/freebsd-usb/2015-January/013586.html
--- usb1/__init__.py.orig 2021-07-02 12:59:01 UTC
+++ usb1/__init__.py
@@ -1864,8 +1864,10 @@ class USBDevice(object):
Get the port number of each hub toward device.
"""
port_list = (c_uint8 * PATH_MAX_DEPTH)()
+ temp_handle = self.open()
result = libusb1.libusb_get_port_numbers(
self.device_p, port_list, len(port_list))
+ temp_handle.close()
mayRaiseUSBError(result)
return list(port_list[:result])
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