dev2bios
error = dev2bios(devname, unit, &biosdev);
static int dev2bios(char *, int, int *);
if ((error = dev2bios(devname, unit, &biosdev)))
static int dev2bios(char *, unsigned int, int *);
error = dev2bios(devname, unit, &biosdev);
if (dev2bios(devname, unit, &biosdev) == 0) {
static int dev2bios(char *devname, unsigned int unit, int *biosdev);
if (dev2bios(devname, unit, &biosdev) == 0) {
static int dev2bios(char *devname, unsigned int unit, int *biosdev);