sbmac_state
static enum sbmac_state sbmac_set_channel_state(struct sbmac_softc *sc,
enum sbmac_state state)
enum sbmac_state oldstate = sc->sbm_state;
enum sbmac_state sbm_state; /* current state */
static enum sbmac_state sbmac_set_channel_state(struct sbmac_softc *,
enum sbmac_state);