MobileRead Forums - View Single Post - PRS-500 reverse engineering the Reader USB protocol

kovidgoyal · 11-15-2006, 12:32 PM

Thanks, yeah that's the same error I was getting in my testing. Unfortunately, the problem seems to be in the libusb implementation on the Mac. Basically any attempt to perform bulk read/writes fails.

I don't know enough about USB internals on the Mac to debug it. Knowing me I'm probably not going to be able resist the challenge to learn though ;-)

11-15-2006, 12:32 PM	#25
kovidgoyal creator of calibre Posts: 43,853 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Thanks, yeah that's the same error I was getting in my testing. Unfortunately, the problem seems to be in the libusb implementation on the Mac. Basically any attempt to perform bulk read/writes fails. I don't know enough about USB internals on the Mac to debug it. Knowing me I'm probably not going to be able resist the challenge to learn though ;-)