The following module was proposed for inclusion in the Module List:
modid: Device::ParallelPort
DSLIP: cdpOg
description: Low Level access to Parallel Port
userid: SCOTT (Scott Penrose)
chapterid: 4 (Operating_System_Interfaces)
communities:
http://linux.dd.com.au/projects/parport for information
similar:
rationale:
A totally abstracted library for parallel port access. There is no
standard way in almost any language/operating system to access the
parallel port for low level control (eg: to control specialised
hardware, not printers).
Linux has at least three methods, Winodws another, FreeBSD, BeOS,
etc all differ. Unlike serial communications it is often necessary
to control the parallel port at the single wire level, eg: switching
one of the pins to input instead of output.
This is not to control devices which would normally deserve a
kernel driver (eg: ZIP drives) which need to be implemented on each
operating system.
This is for controlling watering systems, PIC programmers or the
all famous coffee machine.
The linux version (first being implemented) will have two drivers,
one which accesses hardware directly using (probably c, hopefully
not) outb, inb macros, and the other using /dev/parport via the
parport module (kernel 2.2+).
The knowledge and research into this project is also going to be
used for development in at least one other language, possibly more.
enteredby: SCOTT (Scott Penrose)
enteredon: Fri Jun 1 09:36:56 2001 GMT
The resulting entry would be:
Device::
::ParallelPort cdpOg Low Level access to Parallel Port SCOTT
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