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/*
 * Check for accessibility of a sound device 
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>

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

    if (argc == 1) {
	fprintf(stderr, "usage: chkdsp device\n");
	return 1;
    }
 
    while ((fd = open(argv[1], O_WRONLY, 0)) < 0) {
	printf("0\n");
	usleep(100000);
    }
 
    close(fd);
    printf("1\n");
    return 0;
}
.

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