centos man page for check_pattern

CHECK_PATTERN(9)					    Internal Functions Provided 					  CHECK_PATTERN(9)

NAME
       check_pattern - [GENERIC] check if a pattern is in the buffer

SYNOPSIS
       int check_pattern(uint8_t * buf, int len, int paglen, struct nand_bbt_descr * td);

ARGUMENTS
       buf
	   the buffer to search

       len
	   the length of buffer to search

       paglen
	   the pagelength

       td
	   search pattern descriptor

DESCRIPTION
       Check for a pattern at the given place. Used to search bad block tables and good / bad block identifiers. If the SCAN_EMPTY option is set
       then check, if all bytes except the pattern area contain 0xff.

AUTHOR
       Thomas Gleixner <tglx@linutronix.de>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							  CHECK_PATTERN(9)