Re: spca5xx freezes system
I have been able to use spca5xx-20060202 with FC5.
I have a Dell Latitude D800. My device is a Logitech webcam.
Both spcaview and ekiga are happy. Both show me webcam images.
My particular device was Vendor=046d ProdID=0928
Michel Xhaard was very helpful and responsive when I asked for help.
My Logitech webcam was "new" and not yet supported by spca5xx.
Fortunately, spca5xx was not crashing or doing other bad things--the
webcam was just not working.
I cannot blame Michel for not having access to every distro of Linux.
Companies I have worked for specifically state which versions of which
distros have been tested with their software. I believe having a
choice of distros is both a strength and a weakness, but on balance,
one of the reasons I prefer Linux to the well known desktop O. S.
Question: Is there a way we can collect information that would be
helpful or useful for the people working on spca5xx?
In spca5xx-20060202/README, there is a section, "What to do if your
cam doesn't work". The README suggests "load the module with debug=4
and check syslog for some extremely verbose debug information;". The
verbose debug information may not mean anything to us...but might help
the people working on spca5xx.
I guess one could do the following, "insmod spca5xx.ko debug=4", to
see what the driver thinks during initialization. The real problem
comes when a program tries to use the driver...I don't know what to
suggest for debugging that. One of the joys of Linux is we have the
source. How would people go about debugging a driver hang or crash
given people have the source?
-Rick
On Sun, Apr 16, 2006 at 10:18:45AM -0700, Lonni J Friedman wrote:
On 4/16/06, tiger <no-reply-gw(a)fcp.homelinux.org> wrote:
> 2.6.16-1.2080_FC5smp
> gcc (GCC) 4.1.0 20060304 (Red Hat 4.1.0-3)
> spca5xx-20060402
>
> Compiles and installs fine. Modprobe spca5xx works fine. Here's the
/var/log/messages output of doing a "modprobe spca5xx":
>
> Apr 16 12:18:39 electron kernel: Linux video capture interface: v1.00
> Apr 16 12:18:39 electron kernel: usbcore: registered new driver spca5xx
> Apr 16 12:18:39 electron kernel: /root/spca5xx-20060402/drivers/usb/spca5xx.c:
spca5xx driver 00.57.11 registered
>
> Next, I plug in the camera, and /var/log/messages gives:
>
>
> Apr 16 12:20:33 electron kernel: usb 1-2: new full speed USB device using uhci_hcd
and address 4
> Apr 16 12:20:33 electron kernel: usb 1-2: configuration #1 chosen from 1 choice
> Apr 16 12:20:33 electron kernel: hub 1-2:1.0: USB hub found
> Apr 16 12:20:33 electron kernel: hub 1-2:1.0: 4 ports detected
> Apr 16 12:20:34 electron kernel: usb 1-2.4: new full speed USB device using uhci_hcd
and address 5
> Apr 16 12:20:34 electron kernel: usb 1-2.4: configuration #1 chosen from 1 choice
> Apr 16 12:20:34 electron kernel: /root/spca5xx-20060402/drivers/usb/spca5xx.c: USB
SPCA5XX camera found. Type Creative Live! Zc301+Tas5130c
> Apr 16 12:20:34 electron kernel: /root/spca5xx-20060402/drivers/usb/spca5xx.c:
[spca5xx_probe:8301] Camera type JPEG
> Apr 16 12:20:35 electron kernel: /root/spca5xx-20060402/drivers/usb/zc3xx.h:
[zc3xx_config:530] Find Sensor HV7131R(c)
> Apr 16 12:20:35 electron kernel: /root/spca5xx-20060402/drivers/usb/spca5xx.c:
[spca5xx_getcapability:2198] maxw 640 maxh 480 minw 176 minh 144
>
> But when I run spcaview, it freezes the machine. For obvious reasons I can't
cut-n-paste the screen output. Any ideas?
Same problem here with FC5 & spca5xx on a Biostar motherboard. I had
a serial console setup, and saw some crazy kernel Oops everytime. I
emailed the spca5xx maintainer and he blew me off initially stating
that he only supports official kernel.org kernels. So I built an
official 2.6.16.1 kernel, and saw the same exact Oops all over again
(plus on my system it just spontaneously reboots, instead of hanging).
Now the maintainer is just ignoring my emails, which leads me to
believe that he doesn't know how to fix the problem. *sigh*
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman netllama(a)gmail.com
LlamaLand http://netllama.linux-sxs.org
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