Alan Stern wrote:
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.
Even I did not find these lines, but in /proc/bus/usb/devices I can see
the headphone entries.
Do I need to enable any kernel configuration for that.
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?
It was not ,but now I have enabled CONFIG_PM , how does it help.
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?
I have not tried this.
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.
Do you mean to say that I should use an external hub and then try to
connect all these devices and see.
Same kernel in x86 machine works fine with these devices.But I dont know
whether they are directly connected or through hub.
When I reboot my system on the screen I get some usb error messages
saying "cable may be bad". Is this the reason for my problem.
Please tell me if any further analysis is required to investigate the
problem and if it's a hardware problem how to investigate that.
Alan Stern
Thanks,
Abhishek Kumar
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