Date: Sat, 10 Jan 2004 09:32:48 +0100 From: "Daan Vreeken [PA4DAN]" <Danovitsch@Vitsch.net> To: Vladimir Terziev <vladimir.terziev@sun-fish.com> Cc: FreeBSD-hackers@FreeBSD.org Subject: Re: UNIX / BSD parallel port programming documentation Message-ID: <200401100932.48758.Danovitsch@Vitsch.net> In-Reply-To: <20040109180305.18c23192.vlady@sun-fish.com> References: <20040109180305.18c23192.vlady@sun-fish.com>
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On Friday 09 January 2004 17:03, Vladimir Terziev wrote: > Hi hackers, > > I have to develop small server which has to manage custom microcontroller > via parallel port interface. > Does anyone know good manual/documentation about UNIX / BSD parallel port > programming ? Most of it should already be on your system, have a look at the man-pages. If you want to use the ppbus interface to control the port : man lpt(4), ppbus(4) and ppi(4) If you want to directly address the ports registers yourself without using the driver interface : man io(4) and have a look at /usr/include/machine/cpufunc.h On FreeBSD you need to have opened /dev/io before your program is allowed to do direct IO to any device, and on Linux you need to successfully call ioperm() first. grtz, Daanhelp
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