Littlefs to delete the file

RE: Littlefs to delete the file

Oli — Fri, 02 Sep 2022 19:47:47 GMT

Thanks!

RE: Littlefs to delete the file

ovrebekk — Thu, 16 Jun 2022 08:02:05 GMT

Hi Oli

Yes, you can use the fs_unlink(..) function to delete a file or directory.

Best regards
Torbjørn

RE: Littlefs to delete the file

Oli — Wed, 15 Jun 2022 14:38:21 GMT

Hi ovrebekk,

Is there a way to delete a file entirely?

Thanks,

oli

RE: Littlefs to delete the file

ovrebekk — Mon, 07 Feb 2022 12:43:56 GMT

Hi Tushar

There is no function for clearing a file directly.

Either you would have to use fs_write() to overwrite the existing data with 0's, or you could possibly use the fs_truncate() function twice. One time to reduce the size of the file to 0, and a second time to increase the size back to the original size (but now filled with 0's only).

As a side note, ignore my previous suggestion to use the lfs_file_sync() method, instead the fs_sync() method should be used for flushing the data buffers.

Best regards
Torbjørn

RE: Littlefs to delete the file

Tushar_V — Fri, 04 Feb 2022 12:33:09 GMT

Hi Torbjorn,

i want to clear the contents of file

Regards

Tushar

RE: Littlefs to delete the file

ovrebekk — Fri, 04 Feb 2022 11:16:53 GMT

Hi Tushar

You mean you want to delete the file entirely, or you just want to clear all the content of the file?

Best regards
Torbjørn

RE: Littlefs to delete the file

Tushar_V — Fri, 04 Feb 2022 05:28:40 GMT

Hi, Torbjorn,

I'am running ../zephyr/samples/subsys/fs/littlefs example

is there any way i can empty the file once after reading it

Regards

Tushar

RE: Littlefs to delete the file

ovrebekk — Thu, 03 Feb 2022 12:44:42 GMT

Hi Tushar

You can use the lfs_file_sync(..) function for this.

Best regards
Torbjørn