MTW_USB_TX_EN
tmp = MTW_USB_TX_EN | MTW_USB_RX_EN | MTW_USB_RX_AGG_EN |
mtw_write(sc, MTW_USB_DMA_CFG, MTW_USB_TX_EN | MTW_USB_RX_EN |
mtw_usb_dma_write(sc, tmp | (MTW_USB_RX_EN | MTW_USB_TX_EN));
mtw_usb_dma_write(sc, (MTW_USB_TX_EN | MTW_USB_RX_EN));