diff --git a/include/spdk/bdev.h b/include/spdk/bdev.h
index c4419c12a..3ccc1d400 100644
--- a/include/spdk/bdev.h
+++ b/include/spdk/bdev.h
@@ -52,6 +52,11 @@ extern "C" {
 #define SPDK_BDEV_SMALL_BUF_MAX_SIZE 8192
 #define SPDK_BDEV_LARGE_BUF_MAX_SIZE (64 * 1024)
 
+/**
+ * Block device remove callback.
+ *
+ * \param remove_ctx Context for the removed block device.
+ */
 typedef void (*spdk_bdev_remove_cb_t)(void *remove_ctx);
 
 /**
@@ -104,9 +109,9 @@ enum spdk_bdev_io_type {
  * Block device completion callback.
  *
  * \param bdev_io Block device I/O that has completed.
- * \param success true if I/O completed successfully or false if it failed; additional error
- *                information may be retrieved from bdev_io by calling
- *                spdk_bdev_io_get_nvme_status() or spdk_bdev_io_get_scsi_status().
+ * \param success True if I/O completed successfully or false if it failed;
+ * additional error information may be retrieved from bdev_io by calling
+ * spdk_bdev_io_get_nvme_status() or spdk_bdev_io_get_scsi_status().
  * \param cb_arg Callback argument specified when bdev_io was submitted.
  */
 typedef void (*spdk_bdev_io_completion_cb)(struct spdk_bdev_io *bdev_io,
@@ -123,7 +128,19 @@ struct spdk_bdev_io_stat {
 	uint64_t ticks_rate;
 };
 
+/**
+ * Block device initialization callback.
+ *
+ * \param cb_arg Callback argument.
+ * \param rc 0 if block device initialized successfully or negative errno if it failed.
+ */
 typedef void (*spdk_bdev_init_cb)(void *cb_arg, int rc);
+
+/**
+ * Block device finish callback.
+ *
+ * \param cb_arg Callback argument.
+ */
 typedef void (*spdk_bdev_fini_cb)(void *cb_arg);
 typedef void (*spdk_bdev_get_device_stat_cb)(struct spdk_bdev *bdev,
 		struct spdk_bdev_io_stat *stat, void *cb_arg, int rc);