cover_switch 144 drivers/mmc/host/android-goldfish.c static DEVICE_ATTR(cover_switch, S_IRUGO, goldfish_mmc_show_cover_switch, NULL); cover_switch 317 drivers/mmc/host/omap.c static DEVICE_ATTR(cover_switch, S_IRUGO, mmc_omap_show_cover_switch, NULL);