From owner-freebsd-hackers  Wed Nov  7 11: 0:33 2001
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Date: Wed, 7 Nov 2001 10:48:46 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: Dragon Fire <dragonfire820@mediaone.net>
Cc: freebsd-hackers@freebsd.org
Subject: Re: PCI Device Drivers
In-Reply-To: <008e01c16782$fc4b3080$037d6041@gandalf>
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take the example device driver from the -current
/usr/share/examples/drivers
It makes a skelaton loadable driver.


On Wed, 7 Nov 2001, Dragon Fire wrote:

> I'm writing a very simple PCI device driver that, basically, needs to
> allocate PCI resources, provide 2 ioctls, then deallocate PCI resources on
> shutdown.
> 
> The documentation on writing FreeBSD device drivers is sketchy at best. Does
> anybody have any good resources? Even a pointer to a simple driver would be
> helpful, many of the drivers in the source tree are SCSI or RAID drivers
> which are far more complicated than what I need. I've begun ripping these
> apart but if there are more resources available I'd like to get my hands on
> them.
> 
> Also, I've begun to piece the driver together, but the most notable piece of
> missing information is how to have the driver loaded, is kvmload the way to
> go?.
> 
> There used to be a series of files to edit to add your source into the
> kernel build and add your device into the kernel config file. I'm missing
> the equivalent pieces of information for a loadable driver.
> 
> Thanks in advance,
> 
> 
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