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-rw-r--r--include/linux/mtd/mtd.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 8a2e8bfc1e5..6a8570be331 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -85,6 +85,10 @@ typedef enum {
* mode = MTD_OOB_PLACE)
* @datbuf: data buffer - if NULL only oob data are read/written
* @oobbuf: oob data buffer
+ *
+ * Note, it is allowed to read more then one OOB area at one go, but not write.
+ * The interface assumes that the OOB write requests program only one page's
+ * OOB area.
*/
struct mtd_oob_ops {
mtd_oob_mode_t mode;