Mailing List archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Problem writing to video device
stefan@pettersson.tc writes:
> I am trying to make a video recorder for my Siemens Fujitsu DVB card, using
>
> driver version 0.05. The problem occurs when I try to playback a previous
>
> recorded file and write from my memory buffer to the videodevice. The problem is
>
> that the process hangs after a couple of seconds (sometimes longer and sometimes
>
> shorter time.) After a while it hangs almost immediately and then I get no
>
> picture at all. After having reinstalled the driver modules I can run it for a
>
> couple of seconds again and so on. I have traced the problem and it hangs in the
>
> write(buffer => device) command. But I am stuck with the problem - I cannot
>
> figure out why it happens.
>
>
>
> I am running Red Hat linux and a kernel version 2.2.14. I am also using the
>
> i2c-core.c file from the last driver release as described in the news file.
>
>
>
> To test my hardware and the driver, I tried to run the gVideo application. It
>
> works pretty well, also the playback function, but sometimes it also fails. Then
>
> I get a black screen which remains even if I quit the program and start it over
>
> again. The problem remains until I have reinstalled the driver modules into the
>
> kernel and/or rebooted the computer. (And sometimes the computer hang when I try
>
> to remove/install the modules)
>
>
>
> After a long time of debugging I am starting to getting pretty mad. Therefore I
>
> would like to ask if there is someone knowing anything about this problem - if I
>
> am doing anything completly wrong or if there is some problem with the driver
>
> itself. I would appreciate if someone knowing anything about the problem would
>
> like to please tell me somethings about it...
>
Please wait until friday for the new driver release.
The driver as well as the firmware will be much more stable.
I donĀ“t know if your specific problem will be solved, but we changed
the whole resource locking mechanism inside the driver.
The old code caused a lot of symptoms like you describe, even total
system locks on SMP machines. This should no longer happen.
Ralph
Home |
Main Index |
Thread Index