Re: ldd scull_load question

[Randy Dunlap]

On Sun, 05 Sep 2010 08:35:14 +0800 runcoderen wrote:

> hi all:
> I am reading ldd(3rd).
> when I read the scull_load part.
> I can't understand some special sentences in the scripts as follows:
> 
> /sbin/insmod ./$module.ko $* || exit 1
> 
> why we add $* and || exit 1 after /sbin/insmod ./$module.ko?
> 
> can anyone help me to understand?

"$*" passes all parameters of the script to the module as module parameters.

"insmod module.ko || exit 1"

means "if insmod is successful (no error), then the command is finished,
otherwise exit with an error code of 1."

Does that help?

---
~Randy
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