Linux module interactions

From: gg31 (keawraimc_at_jetable.com)
Date: 03/23/04 

Date: 23 Mar 2004 09:20:05 -0800

Hi.
I've got to write a module which will drive a card and will manage a
proc file to easily configure the driver.

So I would like to know if it is possible to have a module which
control another module. For example, if I got a proc file called
ejectcd and I do :

echo "eject" >/proc/ejectcd

then my cd-rom device will eject the CD.

I tried to use ioctl function but it seems to be impossible, since in
kernel space , I can't use user space functions.

So I wonder if it's possible to write 2 separate modules or if the
only solution is to write only one driver which will manage the proc
file and the device.

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