Help¶

Sets the MAXIMUM size of chunk which will be rounded down to number of bytes that, with all the required headers, will fit into MCUMGR_BUF_SIZE. This means that actual value might be lower then selected, in which case compiler warning will be issued. Look inside fs_mgmt_config.h for details. Note that header sizes are affected by FS_MGMT_MAX_OFFSET_LEN.

Direct dependencies¶

FS_MGMT_DL_CHUNK_SIZE_LIMIT && MCUMGR_CMD_FS_MGMT && MCUMGR

(Includes any dependencies from ifs and menus.)

Default¶

MCUMGR_BUF_SIZE

Kconfig definition¶

At <Zephyr>/subsys/mgmt/mcumgr/Kconfig:102

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:34 → <Zephyr>/subsys/Kconfig:35 → <Zephyr>/subsys/mgmt/Kconfig:9

Menu path: (Top) → Sub Systems and OS Services → Device Management → mcumgr Support → Command Handlers → Enable mcumgr handlers for file management (insecure) → Enable setting custom size of download file chunk

config FS_MGMT_DL_CHUNK_SIZE
    int "Maximum chunk size for file downloads"
    range 65 MCUMGR_BUF_SIZE
    default MCUMGR_BUF_SIZE
    depends on FS_MGMT_DL_CHUNK_SIZE_LIMIT && MCUMGR_CMD_FS_MGMT && MCUMGR
    help
      Sets the MAXIMUM size of chunk which will be rounded down to
      number of bytes that, with all the required headers, will fit
      into MCUMGR_BUF_SIZE. This means that actual value might be lower
      then selected, in which case compiler warning will be issued.
      Look inside fs_mgmt_config.h for details.
      Note that header sizes are affected by FS_MGMT_MAX_OFFSET_LEN.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)