49 lines
1.0 KiB
Python
Executable File
49 lines
1.0 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# sudo pip3 install pyusb
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import usb.core
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import usb.util
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# find our device
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dev = usb.core.find(idVendor=0x0000, idProduct=0x0001)
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# was it found?
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if dev is None:
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raise ValueError('Device not found')
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# get an endpoint instance
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cfg = dev.get_active_configuration()
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intf = cfg[(0, 0)]
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outep = usb.util.find_descriptor(
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intf,
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# match the first OUT endpoint
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custom_match= \
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lambda e: \
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usb.util.endpoint_direction(e.bEndpointAddress) == \
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usb.util.ENDPOINT_OUT)
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inep = usb.util.find_descriptor(
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intf,
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# match the first IN endpoint
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custom_match= \
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lambda e: \
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usb.util.endpoint_direction(e.bEndpointAddress) == \
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usb.util.ENDPOINT_IN)
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assert inep is not None
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assert outep is not None
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test_string = "Hello World!"
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outep.write(test_string)
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from_device = inep.read(len(test_string))
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print("Device Says: {}".format(''.join([chr(x) for x in from_device])))
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