topic Re: MCF5225x MQX3.6 MFS IO_IOCTL_FIND_FIRST_FILE problem in MQX Software Solutions

MCF5225x MQX3.6 MFS IO_IOCTL_FIND_FIRST_FILE problem

ARQuattr — Wed, 09 Oct 2013 03:49:47 GMT

I'm running MFS and USB host MSD stack to read files from a USB drive. The drive is mounted fine and in the shell prompt I can enter dir and get a directory listing. All the other MFS shell commands seem to work normally as well. But I also have some code that attempts to get the first file from the directory but it returns -1. The code is essentially the same as the example given in the MFS user guide (rev2.2, page 32), so I'm not sure what's wrong. I also don't recognize that error code (-1). I would expected an error to be positive and in the 0x3000 range.

_mqx_int error_code;

MFS_SEARCH_DATA search_data;

MFS_SEARCH_PARAM search;

char filepath[] = “*.*”;

search.ATTRIBUTE = MFS_SEARCH_ANY;

search.WILDCARD = filepath;

search.SEARCH_DATA_PTR = &search_data;

error_code = ioctl(mfs_fd_ptr, IO_IOCTL_FIND_FIRST_FILE,(uint_32_ptr) &search);

while (error_code == MFS_NO_ERROR) {

printf ("%-12.12s\n", search_data.NAME);

error_code = ioctl(mfs_fd_ptr, IO_IOCTL_FIND_NEXT_FILE, (uint_32_ptr) &search_data);

} else {

printf ("error code %d\n", error_code);

}

Output:

error code -1

Any advice on what might be the problem, or what I could try to fix it?

Thank you

Re: MCF5225x MQX3.6 MFS IO_IOCTL_FIND_FIRST_FILE problem

maddyv — Wed, 28 May 2014 09:07:07 GMT

We are facing the same problem. Any advice on what might be the problem.

Thanks,

Maddy

Re: MCF5225x MQX3.6 MFS IO_IOCTL_FIND_FIRST_FILE problem

Luis_Garabo — Thu, 29 May 2014 14:06:30 GMT

Hi Angelo,

I wrote this code some months ago. I believe it is still working. Please, try it and share your results:

/******************************************************/

int_32 test_find(int_32 argc, char_ptr argv[] )

{

_mqx_int error_code = MFS_NO_ERROR;

MFS_SEARCH_DATA search_data;

MFS_SEARCH_PARAM search;

char filepath [6]= "a:\\*.*";

MQX_FILE_PTR fs_ptr = NULL;

fs_ptr = _io_get_fs_by_name("a:");

search.ATTRIBUTE = MFS_SEARCH_ANY;

search.WILDCARD = (char_ptr)&filepath;

search.SEARCH_DATA_PTR = &search_data;

error_code = ioctl(fs_ptr, IO_IOCTL_FIND_FIRST_FILE, (uint_32_ptr) &search);

while (error_code == MFS_NO_ERROR)

{

printf ("%-12.12s %6lu %02lu-%02lu-%04lu %02lu:%02lu:%02lu\n",

search_data.NAME,

search_data.FILE_SIZE,

(uint_32)(search_data.DATE & MFS_MASK_MONTH) >>MFS_SHIFT_MONTH,

(uint_32)(search_data.DATE & MFS_MASK_DAY) >>MFS_SHIFT_DAY,

(uint_32)((search_data.DATE & MFS_MASK_YEAR) >>MFS_SHIFT_YEAR) + 1980,

(uint_32)(search_data.TIME & MFS_MASK_HOURS) >>MFS_SHIFT_HOURS,

(uint_32)(search_data.TIME & MFS_MASK_MINUTES) >>MFS_SHIFT_MINUTES,

(uint_32)(search_data.TIME & MFS_MASK_SECONDS) << 1);

error_code = ioctl(fs_ptr, IO_IOCTL_FIND_NEXT_FILE,(uint_32_ptr) &search_data);

}

return error_code;

}

/******************************************************/

Regards,
Garabo

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