SDIO_STATE_PRESENT   62 include/linux/mmc/sdio_func.h #define sdio_func_present(f)	((f)->state & SDIO_STATE_PRESENT)
SDIO_STATE_PRESENT   64 include/linux/mmc/sdio_func.h #define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT)