Parallel port headers

[Daniel O'Connor]

On Tue, 25 Aug 2009, Ivan Voras wrote:
> Hi,
>
> At least one on-line tutorial about parallel port hacking
> (http://www.excamera.com/articles/21/parallel.html) uses these header
> files:
>
> #include <sys/dev/ppbus/ppi.h>
> #include <sys/dev/ppbus/ppbconf.h>
>
> They are actually present in /sys, but not in the normal userland
> include paths. Is this intentional, or was it removed sometimes in
> the past?

According to the ppi man page it's..
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <dev/ppbus/ppi.h>
#include <dev/ppbus/ppbconf.h>

int
main(int argc, char **argv) {
        int     fd;

        if ((fd = open("/dev/ppi0", O_RDWR)) == -1) {
                printf("Can't open /dev/ppi0\n");
                exit(1);
        }

        exit(0);
}

Those includes are present on my 7.2 box (upgraded with the last week) 
and my (oldish) -current box.

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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