Hi, i am trying to build yaffs along with kernel. i am using mtd layer . the problem is with the following line of code in yaffs_guts.c #if 0 // Use Steven Hill's ECC struff instead // External functions for ECC on data void nand_calculate_ecc (const u_char *dat, u_char *ecc_code); int nand_correct_data (u_char *dat, u_char *read_ecc, u_char *calc_ecc); #define yaffs_ECCCalculate(data,ecc) nand_calculate_ecc(data,ecc) #define yaffs_ECCCorrect(data,read_ecc,calc_ecc) nand_correct_ecc(data,read_ecc,calc_ecc) #else #include "yaffs_ecc.h" #endif when i try to build the kernel ,yaffs_ECCCorrect is not getting resolved can anybody to which approach to go 1st approach yaffs_ECCCorrect is defined in yaffs_ecc.c & this file is not getting compiled in the Makefile i can include yaffs_ecc.c in Makefile & build 2nd approach change #if 0 to #if 1 & tried to compile, nand_correct_ecc is not getting reolved there is function nand_correct_data so i changed linne #define yaffs_ECCCorrect(data,read_ecc,calc_ecc) nand_correct_ecc(data,read_ecc,calc_ecc) to #define yaffs_ECCCorrect(data,read_ecc,calc_ecc) nand_correct_data(data,read_ecc,calc_ecc) .now i am able to build. can anybody to which approach to go Regards & thanks SKumar --------------------------------------------------------------------------------------- This mailing list is hosted by Toby Churchill open software (www.toby-churchill.org). If mailing list membership is no longer wanted you can remove yourself from the list by sending an email to yaffs-request@toby-churchill.org with the text "unsubscribe" (without the quotes) as the subject.