topic Re: using IO_IOCTL_FIND_NEXT_FILE in MQX Software Solutions

using IO_IOCTL_FIND_NEXT_FILE

Wanderer — Mon, 12 Sep 2011 01:38:21 GMT

I want to be able to scroll through available files on a disk without knowing the file names beforehand.

I am trying to modify the MFSUG example, "List all files and subdirectories in a directory", by creating subroutines for both IO_IOCTL_FIND_FIRST_FILE and IO_IOCTL_FIND_NEXT_FILE. For example, main() calls find_first_file() then subsequently calls find_next_file() each time I want to know the next file.

For some reason, MFS_SEARCH_DATA struct gets reset each time I call IO_IOCTL_FIND_NEXT_FILE so the required previous file is not saved.

Any ideas?

Thanks, gj

Re: using IO_IOCTL_FIND_NEXT_FILE

PetrM — Fri, 23 Sep 2011 19:41:38 GMT

Hello,

it does not create a list of any kind. The search data only contain information about one (last) file that matched your search criteria. You have to save the information needed yourself after each find-next-search.

PetrM

Re: using IO_IOCTL_FIND_NEXT_FILE

Wanderer — Fri, 23 Sep 2011 20:50:28 GMT

Thanks PetrM,

Defining MFS_SEARCH_DATA struct as STATIC worked.

Cheers, gj

Re: using IO_IOCTL_FIND_NEXT_FILE

oliviachristyva — Thu, 08 Sep 2016 07:42:44 GMT

Hi guys,

I am working with the same thing. I reached till directory listing all the files but I dont know how to configure IO_IOCTL_FIND_FIRST_FILE and IO_IOCTL_FIND_NEXT_FILE to find the file I want from a USB stick .Please share your snippet to find the files and save it in a buffer.

Regards,

Olivia