sending bulk request over interrupt endpoint
Max Asbock <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
I am looking at a UHCI usb device which has endpoints of type interrupt. A userspace daemon attempts to submit an urb of type bulk to the device. This fails and -EINVAl is returned. Is it legal to send a bulk request to an interrupt endpoint? proc_do_submiturb doesn't complain about this case. The EINVAL comes from uhci_submit_interrupt because urb->interval is not initialized for a bulk request on an interrupt endpoint. I don't really know anything about USB, so I hope this makes some sense. The device and userspace daemon worked with earlier kernels. Maybe just by accident? thanks, Max Asbock ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel