Re: looking for simple module/driver programming examples in source tree

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On Tue, May 03, 2011 at 07:45:54AM -0400, Robert P. J. Day wrote:
>   once you see that living, breathing example, what more would you
> need to know about how to have your module/driver create a simple
> read-only proc file?

You need to know that if your module/driver ever creates a simple
read-only proc file, they will be flamed to a crisp on lkml when they
submit it :)

Seriously, don't ever create a new proc file, it's not anything anyone
should ever be doing anymore.

>   i'm also interesting in collecting examples of documentation for
> basic kernel programming concepts.  sometimes, there are excellent
> examples in the source Documentation/ directory, sometimes not.

The kobject documentation should be good, and there are examples in the
samples/ directory in the kernel that should be a great place to start.

Also look at drivers/usb/usb-skeleton.c for an example usb driver.  It
is a bit complex, but then again, it's a real-world one so that's needed
in places.

hope this helps,

greg k-h

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