Logging Flash Backend

RE: Logging Flash Backend

mkscheble — Fri, 08 Aug 2025 06:08:07 GMT

Got it working, thanks

RE: Logging Flash Backend

Kenneth — Thu, 07 Aug 2025 14:16:07 GMT

The "tests/subsys/logging/log_backend_fs" might be useful.

Kenneth

RE: Logging Flash Backend

mkscheble — Thu, 07 Aug 2025 04:54:10 GMT

Hi Kenneth, I put aside 16 kb for my log partition (I just want to store the previous power cycles log). This matches across my pm_static.yml and overlay file. I also added the following kconfig. From here, I get build errors when adding the mounting point (above). What else do I need to add? Is there any examples that I can look at that could help me out? Thanks in advance.

CONFIG_FILE_SYSTEM=y
CONFIG_LOG_BACKEND_FS=y
CONFIG_LOG_BACKEND_FS_DIR="/lfs"
CONFIG_LOG_BACKEND_FS_FILES_LIMIT=2
CONFIG_LOG_BACKEND_FS_AUTOSTART=y
CONFIG_FILE_SYSTEM_LITTLEFS=y

RE: Logging Flash Backend

Kenneth — Tue, 05 Aug 2025 12:11:29 GMT

Hi,

Sorry, don't know (based on the linked case it looks to be required).

Kenneth

RE: Logging Flash Backend

mkscheble — Tue, 05 Aug 2025 05:20:56 GMT

Thanks Kenneth! Do I still need to manually mount

struct fs_mount_t *mp = &FS_FSTAB_ENTRY(PARTITION_NODE);

rc = fs_mount(mp);

rc = fs_opendir(&dir, CONFIG_LOG_BACKEND_FS_DIR and change my memory mapping?

RE: Logging Flash Backend

Kenneth — Mon, 04 Aug 2025 12:43:22 GMT

Hi,

Can you check out this case: demo about CONFIG_LOG_BACKEND_FS=y

Kenneth