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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <pccard/card.h>
int
wrattr_main(argc, argv)
int argc;
char *argv[];
{
int reg, value;
char name[64], c;
int fd;
off_t offs;
if (argc != 4) {
fprintf(stderr, "usage: wrmem slot offs value\n");
exit(1);
}
sprintf(name, "/dev/card%d", atoi(argv[1]));
fd = open(name, 2);
if (fd < 0) {
perror(name);
exit(1);
}
reg = MDF_ATTR;
if (ioctl(fd, PIOCRWFLAG, ®)) {
perror("ioctl (PIOCRWFLAG)");
exit(1);
}
if (sscanf(argv[2], "%x", ®) != 1 ||
sscanf(argv[3], "%x", &value) != 1) {
fprintf(stderr, "arg error\n");
exit(1);
}
offs = reg;
c = value;
lseek(fd, offs, SEEK_SET);
if (write(fd, &c, 1) != 1)
perror(name);
return 0;
}
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