vcstime

[Hugo V. <hvw...@ya...>]

Hi Ruby!

with 2.6.7-ruby I now have the pc speaker working and
the keyboard led programming.

But why doesn't vcstime work?

This is what the code looks like:
=================================================
/*
 * vcstime.c
 *
 * Show time in upper right hand corner of the console
screen
 * aeb, 951202, following a suggestion by Miguel de
Icaza.
 */
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>

void
fatal(char *s) {
    perror(s);
    exit(1);
}

int
number_of_columns() {
    int fda;
    unsigned char rc[2];	/* unsigned: Ra...@so...
*/

    if((fda = open("/dev/vcsa0", O_RDONLY)) < 0)
	fatal("/dev/vcsa0");
    if(read(fda, rc, 2) != 2)
	fatal("/dev/vcsa0");
    close(fda);
    return rc[1];
}

int
main(){
    int fd;
    int cols = number_of_columns();
    time_t tid;
    struct tm *t;
    char tijd[10];

    if((fd = open("/dev/vcs0", O_WRONLY)) < 0)
	fatal("/dev/vcs0");

    while(1) {
	lseek(fd, cols-10, 0);
	tid = time(0);
	t = localtime(&tid);
	sprintf(tijd, " %02d:%02d:%02d", t->tm_hour,
t->tm_min, t->tm_sec);
	write(fd, tijd, 9);
	usleep(500000L);	/* or sleep(1); */
    }
}
==================================================

Hugo


		
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