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struct_nand_bbt_descr
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
struct_nand_bbt_descr - bad block table descriptorSYNOPSIS
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struct nand_bbt_descr { int options; int pages[NAND_MAX_CHIPS]; int offs; int veroffs; uint8_t version[NAND_MAX_CHIPS]; int len; int maxblocks; int reserved_block_code; uint8_t * pattern; };
MEMBERS
options
- options for this descriptor
pages[NAND_MAX_CHIPS]
- the page(s) where we find the bbt, used with option BBT_ABSPAGE when bbt is searched, then we store the found bbts pages here. Its an array and supports up to 8 chips now
offs
- offset of the pattern in the oob area of the page
veroffs
- offset of the bbt version counter in the oob are of the page
version[NAND_MAX_CHIPS]
- version read from the bbt page during scan
len
- length of the pattern, if 0 no pattern check is performed
maxblocks
- maximum number of blocks to search for a bbt. This number of blocks is reserved at the end of the device where the tables are written.
reserved_block_code
- if non-0, this pattern denotes a reserved (rather than bad) block in the stored bbt
pattern
- pattern to identify bad block table or factory marked good / bad blocks, can be NULL, if len = 0
DESCRIPTION
Descriptor for the bad block table marker and the descriptor for the pattern which identifies good and bad blocks. The assumption is made that the pattern and the version count are always located in the oob area of the first block.
AUTHOR
Thomas Gleixner <tglx@linutronix.de>
- Author.
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