1 files changed, 65 insertions, 1 deletions

diff --git a/ubi-utils/include/libubigen.h b/ubi-utils/include/libubigen.h
index 2b567d3..d4bbe3e 100644
--- a/ubi-utils/include/libubigen.h
+++ b/ubi-utils/include/libubigen.h
@@ -90,19 +90,83 @@ struct ubigen_vol_info
 	uint8_t flags;
 };
 
+/**
+ * ubigen_info_init - initialize libubigen.
+ * @ui: libubigen information
+ * @peb_size: flash physical eraseblock size
+ * @min_io_size: flash minimum input/output unit size
+ * @subpage_size: flash sub-page, if present (has to be equivalent to
+ *                @min_io_size if does not exist)
+ * @vid_hdr_offs: offset of the VID header
+ * @ubi_ver: UBI version
+ * @image_seq: UBI image sequence number
+ */
 void ubigen_info_init(struct ubigen_info *ui, int peb_size, int min_io_size,
 		      int subpage_size, int vid_hdr_offs, int ubi_ver,
 		      uint32_t image_seq);
+
+/**
+ * ubigen_create_empty_vtbl - creates empty volume table.
+ * @ui: libubigen information
+ *
+ * This function creates an empty volume table and returns a pointer to it in
+ * case of success and %NULL in case of failure. The returned object has to be
+ * freed with 'free()' call.
+ */
 struct ubi_vtbl_record *ubigen_create_empty_vtbl(const struct ubigen_info *ui);
+
+/**
+ * ubigen_init_ec_hdr - initialize EC header.
+ * @ui: libubigen information
+ * @hdr: the EC header to initialize
+ * @ec: erase counter value
+ */
 void ubigen_init_ec_hdr(const struct ubigen_info *ui,
 		        struct ubi_ec_hdr *hdr, long long ec);
-int ubigen_get_vtbl_size(const struct ubigen_info *ui);
+
+/**
+ * ubigen_add_volume - add a volume to the volume table.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @vtbl: volume table to add to
+ *
+ * This function adds volume described by input parameters to the volume table
+ * @vtbl.
+ */
 int ubigen_add_volume(const struct ubigen_info *ui,
 		      const struct ubigen_vol_info *vi,
 		      struct ubi_vtbl_record *vtbl);
+
+/**
+ * ubigen_write_volume - write UBI volume.
+ * @ui: libubigen information
+ * @vi: volume information
+ * @ec: erase counter value to put to EC headers
+ * @bytes: volume size in bytes
+ * @in: input file descriptor (has to be properly seeked)
+ * @out: output file descriptor
+ *
+ * This function reads the contents of the volume from the input file @in and
+ * writes the UBI volume to the output file @out. Returns zero on success and
+ * %-1 on failure.
+ */
 int ubigen_write_volume(const struct ubigen_info *ui,
 			const struct ubigen_vol_info *vi, long long ec,
 			long long bytes, int in, int out);
+
+/**
+ * ubigen_write_layout_vol - write UBI layout volume
+ * @ui: libubigen information
+ * @peb1: physical eraseblock number to write the first volume table copy
+ * @peb2: physical eraseblock number to write the second volume table copy
+ * @ec1: erase counter value for @peb1
+ * @ec2: erase counter value for @peb1
+ * @vtbl: volume table
+ * @fd: output file descriptor seeked to the proper position
+ *
+ * This function creates the UBI layout volume which contains 2 copies of the
+ * volume table. Returns zero in case of success and %-1 in case of failure.
+ */
 int ubigen_write_layout_vol(const struct ubigen_info *ui, int peb1, int peb2,
 			    long long ec1, long long ec2,
 			    struct ubi_vtbl_record *vtbl, int fd);