VHUB_EP0_RX_BUFF_RDY
writel(VHUB_EP0_RX_BUFF_RDY, ep->ep0.ctlstat);
writel(VHUB_EP0_RX_BUFF_RDY, ep->ep0.ctlstat);
(!ep->ep0.dir_in && (stat & VHUB_EP0_RX_BUFF_RDY)) ||
#define VHUB_DEV_EP0_RX_BUFF_RDY VHUB_EP0_RX_BUFF_RDY