| STRUCT NAND_BBT_DESC(9) | Structures | STRUCT NAND_BBT_DESC(9) |
NAME¶
struct_nand_bbt_descr - bad block table descriptor
SYNOPSIS¶
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.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |