Date: Tue, 3 Aug 2004 18:49:35 +0200 From: Nicolas Rachinsky <list@rachinsky.de> To: Fernando Gleiser <fgleiser@cactus.fi.uba.ar> Cc: hackers@freebsd.org Subject: Re: Controlling external hardware via lpt0 Message-ID: <20040803164935.GA95472@pc5.i.0x5.de> In-Reply-To: <20040803125019.O1361@cactus.fi.uba.ar> References: <20040803125019.O1361@cactus.fi.uba.ar>
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* Fernando Gleiser <fgleiser@cactus.fi.uba.ar> [2004-08-03 13:04 -0300]: > I need to control some external hardware with a small program in > FreeBSD. I thought about using the 8 data bits of the parallel port > for sending the control bits to the hardware. > The hardware is a very simple combinational logic, triggered by level, > I don't need any flow control or such. > > The soft opens /dev/lpt0 and then writes whatever value is needed (i.e, > if I need the 2 lsb to be high and the rest low, I write 0x3) Wouldn't ppi(4) fit your needs better? Nicolas
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