rt2560_vap
struct rt2560_vap *rvp;
rvp = malloc(sizeof(struct rt2560_vap), M_80211_VAP, M_WAITOK | M_ZERO);
struct rt2560_vap *rvp = RT2560_VAP(vap);
struct rt2560_vap *rvp = RT2560_VAP(vap);
#define RT2560_VAP(vap) ((struct rt2560_vap *)(vap))