Re: [Mjpeg-users] automatically loading drivers at startup

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 454-5900

Hi,

> Great. That means that /etc/modules.conf is correct. Now you can do two
> things. I just load zoran (/sbin/modprobe zoran/zr36067) in
> /etc/rc.d/rc.local. The other thing is...
>
> > Just "using the driver" doesn't work, i need to do "modprobe zr36067"
> > I also don't need two entries in /etc/modules.conf, just:
> >
> > alias char-major-81-0 zr36067
>
> What someone on the v4l mailinglist was using, was the following:
>
> alias char-major-81 videodev
> alias char-major-81-0 <tv-card-module> (zr36067 in your case)
>
> If you use that, does it work any better? (It shouldn't, but it
> might...)

Hmm, just tested it, but it didn't work, here's /var/log/messages:
Apr 24 21:12:18 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/i2c-old.o: pre-install \
zr36067 failed
Apr 24 21:12:18 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/i2c-old.o: insmod \
char-major-81-0 failed
Apr 24 21:12:18 schleim kernel: Linux video capture interface: v1.00
Apr 24 21:12:18 schleim kernel: i2c: initialized

I also removed 'modprobe "-k" videodev' from "pre-install zr36067",
exactly the same result.

modprobe -V says "2.4.8", Kernel is 2.4.16, might that be a problem?

I just gave all the commands in "pre-install zr36067" the options
"-k" "-s" "-v", /var/log/messages now looks like this:

Apr 24 21:20:31 schleim insmod: Using 
/lib/modules/2.4.16/kernel/drivers/media/video/saa7110.o
Apr 24 21:20:31 schleim insmod: Symbol version prefix ''
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/saa7110.o: create_module: 
Operation not permitted
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/saa7110.o: insmod saa7110 
failed
Apr 24 21:20:31 schleim insmod: Using 
/lib/modules/2.4.16/kernel/drivers/media/video/adv7175.o
Apr 24 21:20:31 schleim insmod: Symbol version prefix ''
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/adv7175.o: create_module: 
Operation not permitted
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/adv7175.o: insmod adv7175 
failed
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/i2c-old.o: pre-install zr36067 
failed
Apr 24 21:20:31 schleim insmod: 
/lib/modules/2.4.16/kernel/drivers/media/video/i2c-old.o: insmod 
char-major-81 failed
Apr 24 21:20:31 schleim kernel: Linux video capture interface: v1.00
Apr 24 21:20:31 schleim kernel: i2c: initialized

I'm confused, isn't that the wrong order?  Shouldn't "videodev" be the first,
then "i2c-old", then "saa7110", then "adv7175"?

When i now type "modprobe -k zr36067", i get as output:
schleim:~ # modprobe -k zr36067
/sbin/insmod -k -q -s /lib/modules/2.4.16/kernel/drivers/media/video/saa7110.o
/sbin/insmod -k -q -s /lib/modules/2.4.16/kernel/drivers/media/video/adv7175.o

/var/log/messages is:
Apr 24 21:27:48 schleim kernel: Linux video capture interface: v1.00
Apr 24 21:27:48 schleim kernel: i2c: initialized
Apr 24 21:27:48 schleim insmod: Using 
/lib/modules/2.4.16/kernel/drivers/media/video/saa7110.o
Apr 24 21:27:48 schleim insmod: Symbol version prefix ''
Apr 24 21:27:48 schleim insmod: Using 
/lib/modules/2.4.16/kernel/drivers/media/video/adv7175.o
Apr 24 21:27:48 schleim insmod: Symbol version prefix ''
Apr 24 21:27:48 schleim kernel: Zoran ZR36060 + ZR36057/67 MJPEG board driver 
version 0.7
Apr 24 21:27:48 schleim kernel: PCI: Found IRQ 9 for device 00:0d.0
Apr 24 21:27:48 schleim kernel: PCI: Sharing IRQ 9 with 00:0f.0
Apr 24 21:27:48 schleim kernel: MJPEG[0]: Zoran ZR36067 (rev 2) irq: 9, 
memory: 0xef003000
Apr 24 21:27:48 schleim kernel: MJPEG[0]: subsystem vendor=0x1031 id=0x7efe
Apr 24 21:27:48 schleim kernel: MJPEG[0]: Initializing i2c bus...
Apr 24 21:27:48 schleim kernel: saa7110_attach: SAA7110A version 1 at 0x9c, 
status=0xc1
Apr 24 21:27:48 schleim kernel: adv7176_attach: adv7176 rev. 1 at 0x56
Apr 24 21:27:48 schleim kernel: DC10plus[0] card detected
Apr 24 21:27:48 schleim kernel: DC10plus[0]: Zoran ZR36060 (rev 1)
Apr 24 21:27:48 schleim kernel: MJPEG: 1 card(s) found
Apr 24 21:27:48 schleim kernel: MJPEG: using 2 V4L buffers of size 128 KB
Apr 24 21:27:48 schleim kernel: DC10plus[0]: Initializing card[0], zr=e1357220
Apr 24 21:27:49 schleim kernel: DC10plus[0]: Testing interrupts...
Apr 24 21:27:49 schleim kernel: DC10plus[0]: interrupts received: GIRQ1:51 
queue_state=0/0/0/0
Apr 24 21:27:49 schleim kernel: DC10plus[0]: procfs entry /proc/zoran0 
allocated. data=e1357220

Capturing also works just fine.

Whoops, just found out:
If no modules are loaded and i try to capture AS USER ROOT, it works
fine, it might be related to the access rights?

In /dev:
lrwxrwxrwx    1 root     root            6 Dec 29 08:53 video -> video0
crwxrwxrwx    1 root     video     81,   0 Sep 24  2001 video0

That should be ok, shouldn't it?

But that is the only place i know where access rights could be a problem.
Where else does it matter?

Regards,
Torsten.