Date: Wed, 27 Feb 2013 17:16:41 -0500 From: <star-one@tx.rr.com> To: freebsd-drivers@freebsd.org Subject: ISA driver for IRQ and PortIO Message-ID: <20130227221641.B3CSW.38128.root@cdptpa-web26-z02>
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I need to write a simple device driver for the ISA bus that uses one IRQ and a few reads and writes to I/O Ports 0x300 +. I don't know even where to start with FreeBSD. I've done drivers before in other OS systems and have a book for Linux but FreeBSD seems MUCH differnt. Are there any examples I can get? I thought about modifying the serial driver but I'm not een sure if that's a good idea. Any help would be great. Thanks Dave
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