#include <lib.h>
#include <string.h>
#include <unistd.h>
int mapdriver(label, major, dev_style, flags)
char *label;
int major;
int dev_style;
int flags;
{
message m;
m.m2_p1 = label;
m.m2_l1 = strlen(label);
m.m2_i1 = major;
m.m2_i2 = dev_style;
m.m2_i3 = flags;
if (_syscall(VFS_PROC_NR, MAPDRIVER, &m) < 0) return(-1);
return(0);
}