sdio_read_port 513 drivers/staging/rtl8723bs/hal/sdio_ops.c ops->_read_port = &sdio_read_port; sdio_read_port 935 drivers/staging/rtl8723bs/hal/sdio_ops.c ret = sdio_read_port(&adapter->iopriv.intf, WLAN_RX0FF_DEVICE_ID, readsize, readbuf);