[ivtv-users] Insertion erros when installing cx18

[Andy Walls]

On Sun, 2008-10-12 at 22:05 -0400, daryl wrote:
> Andy Walls wrote:
>  > Daryl,
> 
> First, I want to apologize for dumping all of this on you. Its such a 
> lot that I feel guilty.

No, big deal.  This particular problem (PCI mmio access errors to the
CX23418) has dogged me for a few months.  I thought I had it fixed for
good with driver version 1.0.1.  I guess it'll just be my White
Whale... :)


>  > OK, you have obvious PCI bus communications problems.  The CX23418 could
>  > be the cause or something else in your system could be the cause.
>  > Recent experience leads me to believe it's likely the CX23418.


OK.  Let's forget the big list of things to do.  Your vmalloc
allocations looked fine, so let's do this:


1.  Blacklist the cx18 driver if you can, so that it doesn't
automatically load on boot.  (On Fedora it means adding an entry
in /etc/modporbe.d/blacklist.)

2. Reboot and execute the following commands:

$ sudo modprobe -r cx18
$ sudo modprobe cx18 debug=67 retry_mmio=1 enc_mpg_buffers=1 enc_ts_buffers=0 enc_vbi_buffers=0 enc_yuv_buffers=0 enc_pcm_buffers=0

3a. If the driver appears to load OK do this

$ v4l2-ctl -d /dev/video0 --log-status

3b. If it does not load OK, do this

$ sudo modprobe -r cx18


4. Send all output cx18 related out logged to dmesg
(or /var/log/messages)



Regards,
Andy