kopia lustrzana https://github.com/micropython/micropython-lib
11 wiersze
366 B
Python
11 wiersze
366 B
Python
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# MicroPython USB host library, compatible with PyUSB.
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# MIT license; Copyright (c) 2021-2024 Damien P. George
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def get_descriptor(dev, desc_size, desc_type, desc_index, wIndex=0):
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wValue = desc_index | desc_type << 8
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d = dev.ctrl_transfer(0x80, 0x06, wValue, wIndex, desc_size)
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if len(d) < 2:
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raise Exception("invalid descriptor")
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return d
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