OTG_STATE_B_HOST
if (hsotg->op_state == OTG_STATE_B_HOST) {
hsotg->op_state = OTG_STATE_B_HOST;
hsotg->op_state = OTG_STATE_B_HOST;
case OTG_STATE_B_HOST:
if (hsotg->op_state == OTG_STATE_B_HOST) {
return hsotg->op_state == OTG_STATE_B_HOST;