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bluetooth: mesh: clarify mesh dfu fwid max length

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Commit changes BT_MESH_DFU_FWID_MAXLEN option to be
compliant with BLE Mesh specification.

Signed-off-by: Aleksandr Khromykh <aleksandr.khromykh@nordicsemi.no>
This commit is contained in:
Aleksandr Khromykh 2025-06-02 14:15:47 +02:00 • committed by Daniel DeGrasse
commit 2411238196
1 changed files with 7 additions and 2 deletions
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9
subsys/bluetooth/mesh/Kconfig
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@ -1085,10 +1085,15 @@ menu "Firmware Update model configuration"
config BT_MESH_DFU_FWID_MAXLEN config BT_MESH_DFU_FWID_MAXLEN
int "DFU FWID max length" int "DFU FWID max length"
default 16 default 106
range 0 106 range 0 106
help help
This value defines the maximum length of an image's firmware ID. This value defines the maximum length of the vendor-specific version information
that the mesh stack can manage, describing the image. Please note that
only 106 octets size allows the device to be compliant with
the Bluetooth Mesh DFU specification. If smaller than 106 octets are set,
then the device will fail with managing firmware images that have
a longer vendor-specific version information.
config BT_MESH_DFU_METADATA_MAXLEN config BT_MESH_DFU_METADATA_MAXLEN
int "DFU metadata max length" int "DFU metadata max length"