1 files changed, 6 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h
index 8f309f1..dd47f34 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -503,6 +503,12 @@ void mmc_set_clock(struct mmc *mmc, uint clock);
 struct mmc *find_mmc_device(int dev_num);
 int mmc_set_dev(int dev_num);
 void print_mmc_devices(char separator);
+
+/**
+ * get_mmc_num() - get the total MMC device number
+ *
+ * @return 0 if there is no MMC device, else the number of devices
+ */
 int get_mmc_num(void);
 int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf,
 		      enum mmc_hwpart_conf_mode mode);