Symbol: FD_NOT_VALID
sys/dev/disk/fd/fd.c
1803
== FD_NOT_VALID)
sys/dev/disk/fd/fd.c
2097
if (fd_sense_int(fdc, &st0, &cyl) == FD_NOT_VALID)
sys/dev/disk/fd/fd.c
475
return FD_NOT_VALID;