[SINGLE SLOT/DFU] FW loader/ble_mcumgr customization

Question

Hi, 
 I am developing with NCS 3.2.3 on the nRF54L15. 
 I need to customize the FW loader located here: github.com/.../ble_mcumgr 
 The customization is related to the BLE device name, which should include the device serial number, in the form: device_name-serial_number . 
 Basically, I need to override the implementation from: github.com/.../bluetooth.c 
 To do that, I "retarget" the bluetooth.c implementation by adding the following to my CMakeLists.txt (executed when building the ble_mcumgr image):

# HACK:using the following hack the original bluetooth.c is not considered from build system, ref: https://stackoverflow.com/questions/63157793/remove-a-source-file-after-adding-it-with-target-sources-in-cmake
# https://cmake.org/cmake/help/v3.21/prop_sf/HEADER_FILE_ONLY.html
set_source_files_properties(${ZEPHYR_BASE}/samples/subsys/mgmt/mcumgr/smp_svr/src/bluetooth.c TARGET_DIRECTORY app PROPERTIES HEADER_FILE_ONLY ON)
target_sources(app PRIVATE bluetooth.c)

This way I can transparently reuse everything from the SDK without duplicating the whole ble_mcumgr application. 
 In your opinion, is this the best approach? 
 
 Thanks, 
 Alessandro

Sarma · Answer

I am doing this in my application a little differently: Define the scan data parameter: 
 
 static const struct bt_data mScanData [] = { 
 BT_DATA ( BT_DATA_NAME_COMPLETE , sDeviceName , DEVICE_NAME_LEN ), 
 }; Modify the "sDeviceName" as per your application requirement after BLE_Init(). When you start advertisement, the name in "sDeviceName" is taken.

[SINGLE SLOT/DFU] FW loader/ble_mcumgr customization

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