Date: Sat, 26 Jul 2003 12:41:54 +0930 From: Malcolm Kay <malcolm.kay@internode.on.net> To: "Daan Vreeken [PA4DAN]" <Danovitsch@Vitsch.net>, Mark <admin@asarian-host.net> Cc: FreeBSD-questions@freebsd.org Subject: Re: Writing to parallel port Message-ID: <200307261241.54059.malcolm.kay@internode.on.net> In-Reply-To: <200307251942.54397.Danovitsch@Vitsch.net> References: <200307251722.H6PHMFRS032800@asarian-host.net> <200307251942.54397.Danovitsch@Vitsch.net>
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On Sat, 26 Jul 2003 03:12, Daan Vreeken [PA4DAN] wrote: > On Friday 25 July 2003 19:22, Mark wrote: > > Hello, > > > > Has anyone an idea how to set/unset a bit on a parallel port in freeb= sd > > 4.7? I installed Device::ParallelPort from CPAN (Perl 5.8.0), but tha= t > > does nothing (seems made for linux). > > > > Or if someone could point me to a little c-source, that would be help= ful > > too; all I need is to toggle a bit to switch a relay. > > Have a look at this piece of code if wrote : > http://vitsch.net/cgi-bin/gpl/cat.cgi/lampd/v1.0?lampd.c > It's a very small udp network daemon to control my roomlights over the = LAN. > > Basically you need to open /dev/io to get io read/write permission, aft= er > that you are free to bang all IO-ports you want. > Generally you still need to be root or have root privilege to do this; bu= t=20 might vary with different FreeBSD releases. An alternative that may or may not suit your needs is ppi device access t= o parallel ports eg /dev/ppi0; try: # man ppi > grtz, > Daan Malcolm
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