2012/1/30 bibek chitrakar <bibek.chitra...@gmail.com>:
> Hello Wander,
>
> I can write into the device. As you said earlier it was a bulk transfer.
> I have tried with this code. But the return is an array of zeros.
> Does it require a loop or something I am missing.
>
> Code
> #!/usr/bin/python
> import sys
>
> import usb.core
> import usb.util
>
> VENDOR_ID = 0x0dd4
> PRODUCT_ID = 0x01a8
>
> device = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID)
>
> if device is None:
> sys.exit("Could not find Printer.")
>
> if device.is_kernel_driver_active(0):
> try:
> device.detach_kernel_driver(0)
> except usb.core.USBError as e:
> sys.exit("Could not detatch kernel driver: %s" % str(e))
>
> try:
> device.set_configuration()
> device.reset()
Do not reset the device after set_configuration. Strictly speaking,
reseting the device would put put it in a non-configured state.
[snip]
--
Best Regards,
Wander Lairson Costa
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