--- zzzz-none-000/linux-2.4.17/include/linux/mtd/mtd.h	2001-06-12 17:30:27.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/include/linux/mtd/mtd.h	2004-11-24 13:21:45.000000000 +0000
@@ -1,5 +1,5 @@
 
-/* $Id: mtd.h,v 1.33 2001/06/09 00:08:59 dwmw2 Exp $ */
+/* $Id: mtd.h,v 1.1.1.1 2003/06/23 22:18:43 jharrell Exp $ */
 
 #ifndef __MTD_MTD_H__
 #define __MTD_MTD_H__
@@ -137,7 +137,7 @@
 	u_int32_t flags;
 	u_int32_t size;	 // Total size of the MTD
 
-	/* "Major" erase size for the device. Na�ve users may take this
+	/* "Major" erase size for the device. Na�ve users may take this
 	 * to be the only erase size available, or may use the more detailed
 	 * information below if they desire
 	 */
@@ -180,6 +180,18 @@
 	int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
 	int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
 
+	/* 
+	 * Methods to access the protection register area, present in some 
+	 * flash devices. The user data is one time programmable but the
+	 * factory data is read only. 
+	 */
+	int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+	int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+	/* This function is not yet implemented */
+	int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
 	/* iovec-based read/write methods. We need these especially for NAND flash,
 	   with its limited number of write cycles per erase.
 	   NB: The 'count' parameter is the number of _vectors_, each of