On Thursday 29 December 2005 11:41 am, Dan Streetman wrote: > > On Tue, 27 Dec 2005, David Brownell wrote: > > >(*) The issues folk have mentioned with bandwidth reservation for > > EHCI are more "full and low speed devcies can't use all the > > available transaction translator bandwidth" than anything else. > > The patches I just sent to the linux-usb-devel list (couple days ago) take > care of those scheduling restrictions...do you have any comments on them?
Those are the ones I was thinking of, yes. I need to make time to look at those (even try them out!) but I don't have it just now. Though I did notice you were using microframe "7" as an error code; best to have some #defined constant, and one that would later allow for use of FSTN nodes in the periodic schedule. If other folk sent testing reports in, that'd help. It'd affect full speed devices down-stream of high speed hubs, when they use isochronous transfers (audio, video) or interrupt ones (mostly hubs and input devices like keyboards, mice, tablets). And the test cases of most interest would include several of those being used at the same time ... > It would be great to get them in the kernel so EHCI can fully schedule any > lowspeed or fullspeed buses that it manages. I even put the changes > inside a kernel CONFIG option so people can test out the patches fully > before replacing the old model. I'll likely OK that for merge into 2.6.16 without the Kconfig option. Just replace the old scheduling with the newer stuff; no point in trying to sort out two different sets of hard-to-track lowlevel bugs. - Dave ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
