Proper permanent setup of 1394 drivers

[Rick Stevens]

Mark Knecht wrote:
> Hi,
>    Under FC2 what is the proper way to tell it to load the 1394
> drivers at boot time? It seems that USB drivers are loaded in
> /etc/modprobe using an alias command, but USB uses a single driver for
> each controller. However the 1394 drivers require that I load 3 drivers 
> (ieee1394, ohci1394 and sbp2) to get access to all of my peripherals.
> Where and how can I do this?

In /etc/modprobe.conf (the replacement for /etc/modules.conf under
2.6 kernels).  The modules.dep file shows some dependencies, but not
enough to satisfy your needs.  However, we can forcefeed the modules you
want as follows:

1.  Create an "/etc/modules.special" file.  In it, put in the following
lines:

	/sbin/modprobe ohci1394
	/sbin/modprobe ieee1394
	/sbin/modprobe sbp2

(you can optionally stuff a little ">/dev/null 2>&1" at the end of each
line if you want any possible "already loaded" messages to go to the bit
bucket).  Save the file and set as owner and group root, permissions
555:

	chown root:root /etc/modules.special
	chmod 555 /etc/modules.special

2. Edit /etc/modprobe.conf and add these lines:

	install ohci1394 /etc/modules.special
	install ieee1394 /etc/modules.special
	install sbp2 /etc/modules.special

Now, whenever you try to "modprobe" any one of the three, the other two
will also install.  Yes, it's butt ugly.  A more elegant solution would
be to bugger the "/lib/modules/`uname -r`/modules.dep" file, but that
can be a dangerous thing to do if you're not careful.

See "man modprobe", "man modprobe.conf", and "man modules.dep" for
details on the above magic.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-       "I'd explain it to you, but your brain might explode."       -
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