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1
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import logging
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2
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3
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import usb.core
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4
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import usb.util
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5
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6
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7
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def read_connected_devices():
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8
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logging.debug(f'reading all currently connected devices')
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9
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detected_devices = []
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10
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11
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busses = usb.busses()
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12
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13
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for bus in busses:
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14
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devices = bus.devices
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15
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for dev in devices:
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16
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serial_number = None
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17
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device_info = usb.core.find(idProduct=dev.idProduct)
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18
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try:
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19
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serial_number = usb.util.get_string(device_info, device_info.iSerialNumber)
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20
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except:
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21
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# Failed to retrieve information from device
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22
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logging.info(f"device idVendor:{dev.idVendor} idProduct:{dev.idProduct} has invalid format")
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23
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pass
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24
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25
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if serial_number is not None:
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26
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detected_devices.append({
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27
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"vendor_id": dev.idVendor,
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28
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"product_id": dev.idProduct,
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29
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"serial_number": serial_number
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30
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})
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31
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32
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return detected_devices
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