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Question: How to add a driver to the kernel ?

Forum: The Linux Kernel Hackers' Guide
Re: Question Kernel Makefile Configuration: how? (Simon Green)
Keywords: Makefile, configuration, drivers, epic100
Date: Mon, 22 Dec 1997 07:08:52 GMT
From: jacek Radajewski <jacek@usq.edu.au> 

Hi All,

I am in the process of rebuilding our beowulf cluster system and have to include
support for channel bonding and the epic100 SMC card.  So far the
epic100.o module works fine, but I need to compile epic100.c into the
kernel. (I need a monolithic kernel to boot clients of a floppy disk and
mount / via NFS).  Anyway, I put an antry in .config "CONFIG_EPIC100=y",
in drivers/net I put :

ifeq ($(CONFIG_EPIC100),y)
L_OBJS += epic100.o
endif

in the Makefile and compiled the kernel. (epic100.o did compile)

I added an entry in /etc/lilo.conf :

append="root=/dev/hda4 mem=256MB ether=0,0,eth0 ether=0,0,eth1
ether=0,0,eth2"

and ran lilo

"I have 2 SMC cards and 3C900 for the outside world"

When I rebooted the machine only 3C900 was detected, but I have no
problems loading the module.

Questions.

1.  What did I do wrong in the kernel configuration ?
2.  Is there any documentation available on how to add drivers to the
kernel ?