Tim Waugh (tim@cyberelk.demon.co.uk)
Sat, 8 May 1999 21:32:53 +0100 (GMT)
On Sat, 8 May 1999, Edward L. Hepler wrote:
> I'm looking for a simple driver that I can load which will give me
> programmed I/O access to the port from my C program. Ideally, I would
> be able to open it (reserve the port), then read/write the address and
> data register from my program. The port would be released when closed
> or the program terminates, much like any other file.
man iopl(3). Include <asm/io.h>, use inb/outb on the ports, and compile
with -O2 -I/usr/src/linux/include. You need to be root to execute the
program.
Or, if you don't want to be root to access the port, you can have a look
at <URL:ftp://ftp.torque.net/pub/parport/ppuser-0.8.tar.gz>. But the
iopl method is going to be simpler.
Tim.
*/
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This archive was generated by hypermail 2.0b3 on Sat 08 May 1999 - 16:44:51 EDT