Symbol: dsioctl
sys/kern/subr_disk.c
1202
error = dsioctl(dev, ap->a_cmd, ap->a_data, ap->a_fflag,
sys/kern/subr_diskslice.c
617
error = dsioctl(dev, ((cmd == DIOCWDINFO32) ?
sys/sys/diskslice.h
421
int dsioctl (cdev_t dev, u_long cmd, caddr_t data, int flags,