From bb8547fcbc54ecc7a75f9ad45a31042a04d8a2ce Mon Sep 17 00:00:00 2001
From: Laine Walker-Avina <lwalkera@ieee.org>
Date: Tue, 13 Apr 2010 13:27:31 -0700
Subject: [PATCH] FAT: Find the start of the first partition in a non-hardcoded way

---
 fs/fat/fat.c |   12 +++++-------
 1 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index eb754c0..c6bdb13 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -145,13 +145,11 @@ fat_register_device(block_dev_desc_t *dev_desc, int part_no)
 			return -1;
 		}
 #else
-		/* FIXME we need to determine the start block of the
-		 * partition where the DOS FS resides. This can be done
-		 * by using the get_partition_info routine. For this
-		 * purpose the libpart must be included.
-		 */
-		part_offset=63;
-		//part_offset=0;
+		part_offset = buffer[DOS_PART_TBL_OFFSET+8]      |
+		              buffer[DOS_PART_TBL_OFFSET+9] <<8  |
+		              buffer[DOS_PART_TBL_OFFSET+10]<<16 |
+		              buffer[DOS_PART_TBL_OFFSET+11]<<24;
+
 		cur_part = 1;
 #endif
 	}
-- 
1.6.1