> > Okay; I did my homeworks. We've loaded kernel V3.16 (Oct 14th, 2015) > > on an i.MX51 plattform and the problem is still there. Unless an > > important change occured in V3.19, it appears that the latest kernel > > is not the solution for us. So we're still not able to use 4 codecs on > > our i.MX plattform. > > > > So just to make things clearer: > > - We have customers waiting for a solution with that hardware (this > > hardware is already delivred AND used); > > - We have important comittments and severe penalties ($$$) if we're > > not able to deliver on time (due for March 15th); > > - We've already looked at a hardware solution, which corresponds to > > replace current units ($$$$$), so that is not really an option for us; > > > > So as a last resort, I'm wondering, where is the USB expert who could > > help us solving our problem? Any suggestions? > > That would be me.
Great. What do you need to make it a priority? > > > If we are to get into debugging the USB driver, we would do it with > > the current kernel used (V2.6.31). What are the better tools to get > > into that? I guess a USB analyzer (hardware) would be the smart thing? > > Any brand name to suggest? > > It really would be better to start by debugging the most recent kernel > possible. Once the problem has been solved there, it should be fairly > straightforward to port it back. How much time do you think you'd spend solving that kind of issue? Few days? Few weeks, or few months? Could you commit on a certain number of hours? (We are trying to evaluate a possible date where we could start delivering products) When you say "straightforward", again do you have an idea of the amount of time to do such work? > > Any other ideas for a solution will be really appreciated. > > You should begin by using usbmon during a short test (one or two seconds > ought to be enough). See the instructions in the kernel source file > Documentation/usb/usbmon.txt. > Thanks for your support, Michael Tessier _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
