On Thu, 2006-05-18 at 14:24 -0700, Tim Roberts wrote:
> Timo Juhani Lindfors wrote:
> > Hi,
> > On Mon, May 01, 2006 at 08:27:12PM +0200, Gerard Klaver wrote:
> > > send urb 5, send urb 6, send/receive urb7, send/receive urb8, receive
> > > urb 5, receive urb6
> > >
> > > At this moment i don't know how te handle this.
> > > send urb 5, 6 no problem, send/receive urb 7, 8 no problem, but how to
> > > handle to receive urb 5 and 6?.
> > >
> > Are you sure you need to do that btw? I've seen such sequences in
> > usbsnoop logs but all devices that I've tried have accepted different
> > ordering too. What type of URBs are those? Isochronous transfers?
> Yes, it's not immediately clear to me what this means. The only way
> you can send and receive in a single URB is with a control pipe
> transfer, and in that case it's synchronous. So, if urbs 5 and 6 are
> bulk transfers that trigger some bulk data later on, and 6 and 7 are
> control transfers, I could see this scenario. But in that case,
> there's really no relationship between "send urb 5" and "receive urb
> Tim Roberts, timr@...
> Providenza & Boekelheide, Inc.
urb 5, 6 are bulk read transfers, urb 7 and 8 are bulk write transfers