cfdriver_t
cfdriver_t cd = config_cfdriver_lookup("at91twi");
cfdriver_t lebufcd;
cfdriver_t wsbellcd;
cfdriver_t cd = device_cfdriver(dev);
config_unit_nextfree(cfdriver_t cd, cfdata_t cf)
config_unit_alloc(device_t dev, cfdriver_t cd, cfdata_t cf)
cfdriver_t cd;
device_lookup(cfdriver_t cd, int unit)
device_lookup_private(cfdriver_t cd, int unit)
device_lookup_acquire(cfdriver_t cd, int unit)
cfdriver_t
device_t device_lookup(cfdriver_t, int);
void *device_lookup_private(cfdriver_t, int);
device_t device_lookup_acquire(cfdriver_t, int);
cfdriver_t device_cfdriver(device_t);
cfdriver_t dv_cfdriver; /* our cfdriver */