@@ -326,9 +326,10 @@ struct nand_hw_control {
* @read_page_raw: function to read a raw page without ECC
* @write_page_raw: function to write a raw page without ECC
* @read_page: function to read a page according to the ECC generator
- * requirements.
+ * requirements. Returns maximum number of bitflips corrected in
+ * any single ecc step, 0 if bitflips uncorrectible, -EIO hw error.
* @read_subpage: function to read parts of the page covered by ECC.
+ * Returns same as read_page().
* @write_page: function to write a page according to the ECC generator
* requirements.
* @write_oob_raw: function to write chip OOB data without ECC
--
In the absence of any formal documentation of the nand interface, I thought this patch to the header file might be helpful. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> --- include/linux/mtd/nand.h | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) 1.7.3.4