On Wed, 24 Jun 2009, abhishekkumar wrote: > > Your dmesgafter.txt file is identical to the dmesgbefore.txt file. > > Weren't there any new kernel messages while the test was running? > > There should have been some messages when the headphone was plugged in. > > > > > Both dmesg was taken after plugging the headphone, but one is taken > before recording and the other after recording. When the headphone was plugged in, there should have been a line like this: usb 3-2.3: new full speed USB device using ps3-ehci-driver and address 5 But there is no such line in the log file. > The lines which showed hardware bug according to you were still in that > dmesg log. You mean these lines? > [ 33.136461] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 33.136473] hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000 They should not be there, but they are caused by a different bug, a problem with the OHCI controller. They are unrelated to EHCI and the headphone. You might want to copy the "registers" file under /debug/usb/ohci/sb_06. Do you have CONFIG_PM enabled in your kernel? > Initially the recording from headphone works ,but when I try to stop > using ctrl+c , it goes on printing "^c" character ,then prompt keeps > coming continuosly. What happens if you stop the recording by using "kill" over the network connection? > Finally, not able to use my keyboard and mouse. If I rmmod EHCI things > work fine , but I want to use camera ,which uses higher bandwidth. > Whatever log I have sent you is by remotely logging and copying the > files from the PS3 system. I understand. This is a very difficult problem to investigate. Can you try plugging the hub, together with the mouse, keyboard, and headphone, into a regular PC running Linux? If it works, it will indicate that the software is probably okay and something is wrong with the PS3 hardware. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html