[U-Boot] [PATCH v7 2/6] fat: prepare for API change for files greater than 2GB
Suriyan Ramasami
suriyan.r at gmail.com
Fri Nov 14 21:59:57 CET 2014
Hello Simon,
On Tue, Nov 11, 2014 at 4:27 PM, Simon Glass <sjg at chromium.org> wrote:
> Hi,
>
> On 10 November 2014 13:17, Suriyan Ramasami <suriyan.r at gmail.com> wrote:
>> Change the internal fat functions to use loff_t for offsets.
>>
>> Signed-off-by: Suriyan Ramasami <suriyan.r at gmail.com>
>>
>> ---
>>
>> Changes in v7:
>> * Split it so that its bisectable.
>
> A few bits below but with these fixed:
>
> Acked-by: Simon Glass <sjg at chromium.org>
>
>>
>> common/cmd_fat.c | 9 ++--
>> common/env_fat.c | 4 +-
>> fs/fat/fat.c | 133 +++++++++++++++++++++++++++++++----------------------
>> fs/fat/fat_write.c | 61 +++++++++++++-----------
>> fs/fat/file.c | 4 +-
>> include/fat.h | 13 +++---
>> 6 files changed, 128 insertions(+), 96 deletions(-)
>>
>> diff --git a/common/cmd_fat.c b/common/cmd_fat.c
>> index 633fbf1..c00fb28 100644
>> --- a/common/cmd_fat.c
>> +++ b/common/cmd_fat.c
>> @@ -100,7 +100,8 @@ U_BOOT_CMD(
>> static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
>> int argc, char * const argv[])
>> {
>> - long size;
>> + loff_t size;
>> + int ret;
>> unsigned long addr;
>> unsigned long count;
>> block_dev_desc_t *dev_desc = NULL;
>> @@ -127,15 +128,15 @@ static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
>> count = simple_strtoul(argv[5], NULL, 16);
>>
>> buf = map_sysmem(addr, count);
>> - size = file_fat_write(argv[4], buf, count);
>> + ret = file_fat_write(argv[4], buf, 0, count, &size);
>> unmap_sysmem(buf);
>> - if (size == -1) {
>> + if (ret < 0) {
>> printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
>> argv[4], argv[1], dev, part);
>> return 1;
>> }
>>
>> - printf("%ld bytes written\n", size);
>> + printf("%llu bytes written\n", size);
>>
>> return 0;
>> }
>> diff --git a/common/env_fat.c b/common/env_fat.c
>> index 8db0160..9a6ce63 100644
>> --- a/common/env_fat.c
>> +++ b/common/env_fat.c
>> @@ -41,6 +41,7 @@ int saveenv(void)
>> disk_partition_t info;
>> int dev, part;
>> int err;
>> + loff_t size;
>>
>> err = env_export(&env_new);
>> if (err)
>> @@ -59,7 +60,8 @@ int saveenv(void)
>> return 1;
>> }
>>
>> - err = file_fat_write(FAT_ENV_FILE, (void *)&env_new, sizeof(env_t));
>> + err = file_fat_write(FAT_ENV_FILE, (void *)&env_new, sizeof(env_t),
>> + &size);
>> if (err == -1) {
>> printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
>> FAT_ENV_FILE, FAT_ENV_INTERFACE, dev, part);
>> diff --git a/fs/fat/fat.c b/fs/fat/fat.c
>> index 561921f..29d0825 100644
>> --- a/fs/fat/fat.c
>> +++ b/fs/fat/fat.c
>> @@ -317,32 +317,33 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
>> /*
>> * Read at most 'maxsize' bytes from 'pos' in the file associated with 'dentptr'
>> * into 'buffer'.
>> - * Return the number of bytes read or -1 on fatal errors.
>> + * Update the number of bytes read in *gotsize or return -1 on fatal errors.
>> */
>> __u8 get_contents_vfatname_block[MAX_CLUSTSIZE]
>> __aligned(ARCH_DMA_MINALIGN);
>>
>> -static long
>> -get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
>> - __u8 *buffer, unsigned long maxsize)
>> +static int
>
> put this on the same line as the next
>
OK
>> +get_contents(fsdata *mydata, dir_entry *dentptr, loff_t pos,
>> + __u8 *buffer, loff_t maxsize, loff_t *gotsize)
>> {
>> - unsigned long filesize = FAT2CPU32(dentptr->size), gotsize = 0;
>> + loff_t filesize = FAT2CPU32(dentptr->size);
>> unsigned int bytesperclust = mydata->clust_size * mydata->sect_size;
>> __u32 curclust = START(dentptr);
>> __u32 endclust, newclust;
>> - unsigned long actsize;
>> + loff_t actsize;
>>
>> - debug("Filesize: %ld bytes\n", filesize);
>> + *gotsize = 0;
>> + debug("Filesize: %llu bytes\n", filesize);
>>
>> if (pos >= filesize) {
>> - debug("Read position past EOF: %lu\n", pos);
>> - return gotsize;
>> + debug("Read position past EOF: %llu\n", pos);
>> + return 0;
>> }
>>
>> if (maxsize > 0 && filesize > pos + maxsize)
>> filesize = pos + maxsize;
>>
>> - debug("%ld bytes\n", filesize);
>> + debug("%llu bytes\n", filesize);
>>
>> actsize = bytesperclust;
>>
>> @@ -352,7 +353,7 @@ get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
>> if (CHECK_CLUST(curclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", curclust);
>> debug("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> actsize += bytesperclust;
>> }
>> @@ -373,16 +374,16 @@ get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
>> filesize -= actsize;
>> actsize -= pos;
>> memcpy(buffer, get_contents_vfatname_block + pos, actsize);
>> - gotsize += actsize;
>> + *gotsize += actsize;
>> if (!filesize)
>> - return gotsize;
>> + return 0;
>> buffer += actsize;
>>
>> curclust = get_fatent(mydata, curclust);
>> if (CHECK_CLUST(curclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", curclust);
>> debug("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> }
>>
>> @@ -398,7 +399,7 @@ get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
>> if (CHECK_CLUST(newclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", newclust);
>> debug("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> endclust = newclust;
>> actsize += bytesperclust;
>> @@ -410,14 +411,14 @@ get_contents(fsdata *mydata, dir_entry *dentptr, unsigned long pos,
>> printf("Error reading cluster\n");
>> return -1;
>> }
>> - gotsize += actsize;
>> - return gotsize;
>> + *gotsize += actsize;
>> + return 0;
>> getit:
>> if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
>> printf("Error reading cluster\n");
>> return -1;
>> }
>> - gotsize += (int)actsize;
>> + *gotsize += (int)actsize;
>> filesize -= actsize;
>> buffer += actsize;
>>
>> @@ -425,7 +426,7 @@ getit:
>> if (CHECK_CLUST(curclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", curclust);
>> printf("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> actsize = bytesperclust;
>> endclust = curclust;
>> @@ -633,8 +634,8 @@ static dir_entry *get_dentfromdir(fsdata *mydata, int startsect,
>> }
>> if (doit) {
>> if (dirc == ' ') {
>> - printf(" %8ld %s%c\n",
>> - (long)FAT2CPU32(dentptr->size),
>> + printf(" %8u %s%c\n",
>> + FAT2CPU32(dentptr->size),
>> l_name,
>> dirc);
>> } else {
>> @@ -690,8 +691,8 @@ static dir_entry *get_dentfromdir(fsdata *mydata, int startsect,
>>
>> if (doit) {
>> if (dirc == ' ') {
>> - printf(" %8ld %s%c\n",
>> - (long)FAT2CPU32(dentptr->size),
>> + printf(" %8u %s%c\n",
>> + FAT2CPU32(dentptr->size),
>> s_name, dirc);
>> } else {
>> printf(" %s%c\n",
>> @@ -806,9 +807,8 @@ exit:
>> __u8 do_fat_read_at_block[MAX_CLUSTSIZE]
>> __aligned(ARCH_DMA_MINALIGN);
>>
>> -long
>> -do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> - unsigned long maxsize, int dols, int dogetsize)
>> +int do_fat_read_at(const char *filename, loff_t pos, void *buffer,
>> + loff_t maxsize, int dols, int dogetsize, loff_t *size)
>> {
>> char fnamecopy[2048];
>> boot_sector bs;
>> @@ -821,7 +821,7 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> __u32 cursect;
>> int idx, isdir = 0;
>> int files = 0, dirs = 0;
>> - long ret = -1;
>> + int ret = -1;
>> int firsttime;
>> __u32 root_cluster = 0;
>> int rootdir_size = 0;
>> @@ -974,8 +974,8 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> }
>> if (doit) {
>> if (dirc == ' ') {
>> - printf(" %8ld %s%c\n",
>> - (long)FAT2CPU32(dentptr->size),
>> + printf(" %8u %s%c\n",
>> + FAT2CPU32(dentptr->size),
>> l_name,
>> dirc);
>> } else {
>> @@ -1032,8 +1032,8 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> }
>> if (doit) {
>> if (dirc == ' ') {
>> - printf(" %8ld %s%c\n",
>> - (long)FAT2CPU32(dentptr->size),
>> + printf(" %8u %s%c\n",
>> + FAT2CPU32(dentptr->size),
>> s_name, dirc);
>> } else {
>> printf(" %s%c\n",
>> @@ -1102,7 +1102,7 @@ do_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> if (dols == LS_ROOT) {
>> printf("\n%d file(s), %d dir(s)\n\n",
>> files, dirs);
>> - ret = 0;
>> + *size = 0;
>> }
>> goto exit;
>> }
>> @@ -1141,7 +1141,7 @@ rootdir_done:
>> if (get_dentfromdir(mydata, startsect, subname, dentptr,
>> isdir ? 0 : dols) == NULL) {
>> if (dols && !isdir)
>> - ret = 0;
>> + *size = 0;
>> goto exit;
>> }
>>
>> @@ -1152,21 +1152,23 @@ rootdir_done:
>> subname = nextname;
>> }
>>
>> - if (dogetsize)
>> - ret = FAT2CPU32(dentptr->size);
>> - else
>> - ret = get_contents(mydata, dentptr, pos, buffer, maxsize);
>> - debug("Size: %d, got: %ld\n", FAT2CPU32(dentptr->size), ret);
>> + if (dogetsize) {
>> + *size = FAT2CPU32(dentptr->size);
>> + ret = 0;
>> + } else {
>> + ret = get_contents(mydata, dentptr, pos, buffer, maxsize, size);
>> + }
>> + debug("Size: %u, got: %llu\n", FAT2CPU32(dentptr->size), *size);
>>
>> exit:
>> free(mydata->fatbuf);
>> return ret;
>> }
>>
>> -long
>> -do_fat_read(const char *filename, void *buffer, unsigned long maxsize, int dols)
>> +int do_fat_read(const char *filename, void *buffer, loff_t maxsize, int dols,
>> + loff_t *actread)
>> {
>> - return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0);
>> + return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0, actread);
>> }
>>
>> int file_fat_detectfs(void)
>> @@ -1233,44 +1235,63 @@ int file_fat_detectfs(void)
>>
>> int file_fat_ls(const char *dir)
>> {
>> - return do_fat_read(dir, NULL, 0, LS_YES);
>> + loff_t size;
>> +
>> + return do_fat_read(dir, NULL, 0, LS_YES, &size);
>> }
>>
>> int fat_exists(const char *filename)
>> {
>> - int sz;
>> - sz = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1);
>> - return sz >= 0;
>> + int ret;
>> + loff_t size;
>
> blank line here
>
OK
>> + ret = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, &size);
>> + return ret == 0;
>> }
>>
>> int fat_size(const char *filename)
>> {
>> - return do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1);
>> +loff_t size;
>> +int ret;
>
> indent those two lines
>
OK
>> +
>> + ret = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, &size);
>> + if (ret)
>> + return ret;
>> + else
>> + return size;
>> }
>>
>> -long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> - unsigned long maxsize)
>> +int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
>> + loff_t maxsize, loff_t *actread)
>> {
>> printf("reading %s\n", filename);
>> - return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0);
>> + return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0,
>> + actread);
>> }
>>
>> -long file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
>> +int file_fat_read(const char *filename, void *buffer, int maxsize)
>> {
>> - return file_fat_read_at(filename, 0, buffer, maxsize);
>> +loff_t actread;
>> +int ret;
>
> indent those two lines
>
OK
>> +
>> + ret = file_fat_read_at(filename, 0, buffer, maxsize, &actread);
>> + if (ret)
>> + return ret;
>> + else
>> + return actread;
>> }
>>
>> int fat_read_file(const char *filename, void *buf, int offset, int len)
>> {
>> - int len_read;
>> + int ret;
>> + loff_t actread;
>>
>> - len_read = file_fat_read_at(filename, offset, buf, len);
>> - if (len_read == -1) {
>> + ret = file_fat_read_at(filename, offset, buf, len, &actread);
>> + if (ret) {
>> printf("** Unable to read file %s **\n", filename);
>> - return -1;
>> + return ret;
>> }
>>
>> - return len_read;
>> + return actread;
>> }
>>
>> void fat_close(void)
>> diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c
>> index 24ed5d3..88dd495 100644
>> --- a/fs/fat/fat_write.c
>> +++ b/fs/fat/fat_write.c
>> @@ -660,24 +660,26 @@ static int clear_fatent(fsdata *mydata, __u32 entry)
>> /*
>> * Write at most 'maxsize' bytes from 'buffer' into
>> * the file associated with 'dentptr'
>> - * Return the number of bytes read or -1 on fatal errors.
>> + * Update the number of bytes written in *gotsize and return 0
>> + * or return -1 on fatal errors.
>> */
>> static int
>> set_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
>> - unsigned long maxsize)
>> + loff_t maxsize, loff_t *gotsize)
>> {
>> - unsigned long filesize = FAT2CPU32(dentptr->size), gotsize = 0;
>> + loff_t filesize = FAT2CPU32(dentptr->size);
>> unsigned int bytesperclust = mydata->clust_size * mydata->sect_size;
>> __u32 curclust = START(dentptr);
>> __u32 endclust = 0, newclust = 0;
>> - unsigned long actsize;
>> + loff_t actsize;
>>
>> - debug("Filesize: %ld bytes\n", filesize);
>> + *gotsize = 0;
>> + debug("Filesize: %llu bytes\n", filesize);
>>
>> if (maxsize > 0 && filesize > maxsize)
>> filesize = maxsize;
>>
>> - debug("%ld bytes\n", filesize);
>> + debug("%llu bytes\n", filesize);
>>
>> actsize = bytesperclust;
>> endclust = curclust;
>> @@ -692,7 +694,7 @@ set_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
>> if (CHECK_CLUST(newclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", newclust);
>> debug("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> endclust = newclust;
>> actsize += bytesperclust;
>> @@ -706,7 +708,7 @@ set_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
>> }
>>
>> /* set remaining bytes */
>> - gotsize += (int)actsize;
>> + *gotsize += actsize;
>> filesize -= actsize;
>> buffer += actsize;
>> actsize = filesize;
>> @@ -715,7 +717,7 @@ set_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
>> debug("error: writing cluster\n");
>> return -1;
>> }
>> - gotsize += actsize;
>> + *gotsize += actsize;
>>
>> /* Mark end of file in FAT */
>> if (mydata->fatsize == 16)
>> @@ -724,20 +726,20 @@ set_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
>> newclust = 0xfffffff;
>> set_fatent_value(mydata, endclust, newclust);
>>
>> - return gotsize;
>> + return 0;
>> getit:
>> if (set_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
>> debug("error: writing cluster\n");
>> return -1;
>> }
>> - gotsize += (int)actsize;
>> + *gotsize += actsize;
>> filesize -= actsize;
>> buffer += actsize;
>>
>> if (CHECK_CLUST(curclust, mydata->fatsize)) {
>> debug("curclust: 0x%x\n", curclust);
>> debug("Invalid FAT entry\n");
>> - return gotsize;
>> + return 0;
>> }
>> actsize = bytesperclust;
>> curclust = endclust = newclust;
>> @@ -766,7 +768,7 @@ static void fill_dentry(fsdata *mydata, dir_entry *dentptr,
>> * exceed the size of the block device
>> * Return -1 when overflow occurs, otherwise return 0
>> */
>> -static int check_overflow(fsdata *mydata, __u32 clustnum, unsigned long size)
>> +static int check_overflow(fsdata *mydata, __u32 clustnum, loff_t size)
>> {
>> __u32 startsect, sect_num;
>>
>> @@ -923,8 +925,8 @@ static dir_entry *find_directory_entry(fsdata *mydata, int startsect,
>> return NULL;
>> }
>>
>> -static int do_fat_write(const char *filename, void *buffer,
>> - unsigned long size)
>> +static int do_fat_write(const char *filename, void *buffer, loff_t size,
>> + loff_t *actwrite)
>> {
>> dir_entry *dentptr, *retdent;
>> __u32 startsect;
>> @@ -936,8 +938,8 @@ static int do_fat_write(const char *filename, void *buffer,
>> int cursect;
>> int ret = -1, name_len;
>> char l_filename[VFAT_MAXLEN_BYTES];
>> - int write_size = size;
>>
>> + *actwrite = size;
>> dir_curclust = 0;
>>
>> if (read_bootsectandvi(&bs, &volinfo, &mydata->fatsize)) {
>> @@ -1015,7 +1017,7 @@ static int do_fat_write(const char *filename, void *buffer,
>>
>> ret = check_overflow(mydata, start_cluster, size);
>> if (ret) {
>> - printf("Error: %ld overflow\n", size);
>> + printf("Error: %llu overflow\n", size);
>> goto exit;
>> }
>>
>> @@ -1025,13 +1027,12 @@ static int do_fat_write(const char *filename, void *buffer,
>> goto exit;
>> }
>>
>> - ret = set_contents(mydata, retdent, buffer, size);
>> + ret = set_contents(mydata, retdent, buffer, size, actwrite);
>> if (ret < 0) {
>> printf("Error: writing contents\n");
>> goto exit;
>> }
>> - write_size = ret;
>> - debug("attempt to write 0x%x bytes\n", write_size);
>> + debug("attempt to write 0x%llx bytes\n", *actwrite);
>>
>> /* Flush fat buffer */
>> ret = flush_fat_buffer(mydata);
>> @@ -1061,7 +1062,7 @@ static int do_fat_write(const char *filename, void *buffer,
>>
>> ret = check_overflow(mydata, start_cluster, size);
>> if (ret) {
>> - printf("Error: %ld overflow\n", size);
>> + printf("Error: %llu overflow\n", size);
>> goto exit;
>> }
>>
>> @@ -1069,13 +1070,13 @@ static int do_fat_write(const char *filename, void *buffer,
>> fill_dentry(mydata, empty_dentptr, filename,
>> start_cluster, size, 0x20);
>>
>> - ret = set_contents(mydata, empty_dentptr, buffer, size);
>> + ret = set_contents(mydata, empty_dentptr, buffer, size,
>> + actwrite);
>> if (ret < 0) {
>> printf("Error: writing contents\n");
>> goto exit;
>> }
>> - write_size = ret;
>> - debug("attempt to write 0x%x bytes\n", write_size);
>> + debug("attempt to write 0x%llx bytes\n", *actwrite);
>>
>> /* Flush fat buffer */
>> ret = flush_fat_buffer(mydata);
>> @@ -1096,11 +1097,17 @@ static int do_fat_write(const char *filename, void *buffer,
>>
>> exit:
>> free(mydata->fatbuf);
>> - return ret < 0 ? ret : write_size;
>> + return ret;
>> }
>>
>> -int file_fat_write(const char *filename, void *buffer, unsigned long maxsize)
>> +int file_fat_write(const char *filename, void *buffer, loff_t offset,
>> + loff_t maxsize, loff_t *actwrite)
>> {
>> + if (offset != 0) {
>> + printf("Error: non zero offset is currently not suported.\n");
>> + return -1;
>> + }
>> +
>> printf("writing %s\n", filename);
>> - return do_fat_write(filename, buffer, maxsize);
>> + return do_fat_write(filename, buffer, maxsize, actwrite);
>> }
>> diff --git a/fs/fat/file.c b/fs/fat/file.c
>> index d910c46..98559f2 100644
>> --- a/fs/fat/file.c
>> +++ b/fs/fat/file.c
>> @@ -162,8 +162,8 @@ file_ls(const char *dir)
>> return filesystems[current_filesystem].ls(arg);
>> }
>>
>> -long
>> -file_read(const char *filename, void *buffer, unsigned long maxsize)
>> +int
>
> put on next line
>
>> +file_read(const char *filename, void *buffer, int maxsize)
>> {
>> char fullpath[1024];
>> const char *arg;
>> diff --git a/include/fat.h b/include/fat.h
>> index 20ca3f3..99c6429 100644
>> --- a/include/fat.h
>> +++ b/include/fat.h
>> @@ -178,8 +178,8 @@ typedef struct {
>>
>> typedef int (file_detectfs_func)(void);
>> typedef int (file_ls_func)(const char *dir);
>> -typedef long (file_read_func)(const char *filename, void *buffer,
>> - unsigned long maxsize);
>> +typedef int (file_read_func)(const char *filename, void *buffer,
>> + int maxsize);
>>
>> struct filesystem {
>> file_detectfs_func *detect;
>> @@ -199,14 +199,15 @@ int file_fat_detectfs(void);
>> int file_fat_ls(const char *dir);
>> int fat_exists(const char *filename);
>> int fat_size(const char *filename);
>> -long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
>> - unsigned long maxsize);
>> -long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
>> +int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
>> + loff_t maxsize, loff_t *actread);
>> +int file_fat_read(const char *filename, void *buffer, int maxsize);
>> const char *file_getfsname(int idx);
>> int fat_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
>> int fat_register_device(block_dev_desc_t *dev_desc, int part_no);
>>
>> -int file_fat_write(const char *filename, void *buffer, unsigned long maxsize);
>> +int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,
>> + loff_t *actwrite);
>> int fat_read_file(const char *filename, void *buf, int offset, int len);
>> void fat_close(void);
>> #endif /* _FAT_H_ */
>> --
>> 1.9.1
>>
>
> Regards,
> Simon
Thanks for the review!
- Suriyan
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