On Wed, 3 Mar 2004, David Brownell wrote: > >>>/proc/bus/usb/001/004 test 14, 4.012137 secs > >> > >>That's handy: control out testing makes "usbtest" cover > >>a lot more of the basic host and device functionality. > > > > > > Yep. In fact until very recently it was only working with -v0 for me. > > Reason was the handling of wLength=0 ep0 data packets. From the spec > > (5.5.3) it isn't clear to me whether the host whould send a zero-len > > packet in this case. My firmware assumed yes, but linux-usb didn't. I've > > changed the firmware now so they behave. > > Seems like that TT issue I saw, maybe ... did OHCI and UHCI act the same?
OHCI: yes, like EHCI. Note the firmware was never expecting an appended zero-length packet if wLength equals multiple maxpacket, I'm only talking about wLength==0 here. And I'm wondering why a real life device would ever issue a request to send 0 bytes - so maybe it's academic, but it happens with usbtest and 0<vary<length. UHCI: not tried - and meanwhile the firmware behaves differently here... I'm offline for the rest of the day, but I think the iso-firmware is ready for release tomorrow :-) Martin ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
