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From: Giuseppe on 21 Oct 2009 13:43
Where can I find information about USBPRINT?
I have a device connected to an IEEE1284-USB converter (Prolific PL2305).
Data transfer is in nibble mode. If I connect the device to a parallel port
communication is in ECP mode. Pl2305 chip supports ECP mode but nowhere does
it explain how to switch from nibbles to ECP. I tried with I / O Control
Codes "IOCTL_IEEE1284_NEGOTIATE" but fails on a converter USB/IEEE1284,
while working properly on a parallel port.
Thanks

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