diff --git a/include/spdk/blob_bdev.h b/include/spdk/blob_bdev.h
index 2fb69c094..c50c439b7 100644
--- a/include/spdk/blob_bdev.h
+++ b/include/spdk/blob_bdev.h
@@ -49,9 +49,26 @@ struct spdk_bs_dev;
 struct spdk_bdev;
 struct spdk_bdev_module_if;
 
+/**
+ * Create a blobstore block device from a bdev.
+ *
+ * \param bdev Bdev to use.
+ * \param remove_cb Called when the block device is removed.
+ * \param remove_ctx Argument passed to function remove_cb.
+ *
+ * \return a pointer to the blobstore block device on success or NULL otherwise.
+ */
 struct spdk_bs_dev *spdk_bdev_create_bs_dev(struct spdk_bdev *bdev, spdk_bdev_remove_cb_t remove_cb,
 		void *remove_ctx);
 
+/**
+ * Claim the bdev module for the given blobstore.
+ *
+ * \param bs_dev Blobstore block device.
+ * \param module Bdev module to claim.
+ *
+ * \return 0 on success, negative errno on failure.
+ */
 int spdk_bs_bdev_claim(struct spdk_bs_dev *bs_dev, struct spdk_bdev_module_if *module);
 
 #ifdef __cplusplus