python - usb device identification

Question

i am using python on ubuntu 9.04 say i have two usb devices connected to a single PC. how can i identify the devices in python code.....for example like

if usb port id == A write data to device 1 if usb port id == B write data to device 2

any ideas....

Answer 1

Have you tried pyUsb? Install using:

pip install pyusb

Here a snippet of what you can do:

import usb
busses = usb.busses()
for bus in busses:
    devices = bus.devices
    for dev in devices:
        print("Device:", dev.filename)
        print("  idVendor: %d (0x%04x)" % (dev.idVendor, dev.idVendor))
        print("  idProduct: %d (0x%04x)" % (dev.idProduct, dev.idProduct))

Here a good tutorial of pyUsb.

For more documentation, use Python interactive mode with dir() and help().