On Mon, 3 Nov 2014, Naveen Kumar Parna wrote: > On Sat, Nov 1, 2014 at 2:21 AM, Alan Stern <st...@rowland.harvard.edu> wrote: > > On Wed, 29 Oct 2014, Naveen Kumar Parna wrote: > > > >> Split packet transactions are hidden. I could see them by clicking on > >> the (Show/Hide Split transactions) button. For INT IN, I could see > >> only Start Split packet. > >> > >> I attached([2014-10-28 session 144012] Trace0003.rar) complete log for > >> this scenario. > > > > How come the log doesn't contain any SOF packets? > > > To avoid recording a huge quantity of data , I enabled the "Drop Start > of Frames" filter in the recording options.
Can you do it again, but this time keep the SOF packets? You don't have to post the entire analyzer log. Just extract 3 or 4 ms from the middle, where it shows the SSPLITS but no CSPLITS for the interrupt endpoints, and post only that portion. > > I see what you mean -- the log doesn't contain any CSPLIT transactions > > for the interrupt endpoints. Only SSPLIT. > > > > I'll need to see the scheduling information for these endpoints. > > You'll have to run a 3.13 or later kernel; then the important files > > will be under /sys/kernel/debug/usb/ehci/X/, where X is the PCI address > > of the EHCI controller you are using. > > > > Copy the files in that directory while the test is running. > > > > > I attached all the files. Please let me know if I miss anything? All the information in the files looks correct, as far as I can see. I have no idea why the CSPLIT packets are missing. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
