Date: Wed, 03 Dec 2003 08:36:42 +0200 From: rk47 <rk@nanoteq.co.za> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD DRIVER DEVELOPMENT Message-ID: <bqjvvl$f0n$1@sea.gmane.org> References: <000801c3b835$8a5f3a60$1c77fea9@dpc27> <20031202150109.52c9e309.kitsune@gmx.co.uk> <200312030115.hB31FRaQ027935@fw.farid-hajji.net>
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> As with every device driver, the recommended (or at least proved) > way is to take an existing, simple driver, and modify it to suit > your needs. The simplest driver is probably the puc (sys/dev/pci/puc.c) driver, it has a lot of the elements that a driver can have. > Kernel interfaces are documented in intro(9) and related section 9 > man pages (ls /usr/share/man/man9) Some (one that I can think of) of the kernel interfaces are not given here. The interface to the dma services (bus_dma) you can find at : http://www.openbsd.org/cgi-bin/man.cgi > http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/pci.html) > You can also look at the ISA section, because of the NEWBUS architecture an ISA driver is very similar to a PCI driver in many ways, e.g. allocating bus resources, setting up interupt handlers etc. A few articles on www.daemonnews.org can also help: NEWBUS intro (helped me a lot): http://www.daemonnews.org/200007/newbus-intro.html KLD (loadable modules) : http://www.daemonnews.org/200010/blueprints.html Good Luck Riaan
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