On Mon, 17 May 2004, Roman wrote: > Hellow. > > Whether help me the programmer to care should understand of that to > have Transfer Descriptors in the order in which them should process > the controller. > For example: > Whether it is necessary to do processing of Queue in depth if in > it is located a SETUP package, a "IN" package and a "NULL" package > of acknowledgement.
No it is not necessary. For each endpoint on a USB device, the controller has a queue of Transfer Descriptors (TDs). The controller does not need to process each queue fully before moving on to the next queue. All that matters is that within each queue, the TDs must be processed in order. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
