Change BLE attribute dynamically on NCS

[Beldramma]

HI,

I am working on a NRF54L15 with NCS 2.9. I have a service my_service created with BT_GATT_SERVICE_DEFINE, with two characteristics, "Protected" and "Password". "Protected" is read-only and "Password" is read-write.I would like to know if it is possible to change a BLE interface after it has been created, and also if connected, for example:

• change permission: when connected, if "Password" is written with a certain value ( correct password), then "Protected" should we writable
• make appear or disappear a characteristic with the same process as in first point

I have seen that I have access to the attributes of the service with attrs field, so the perm field.

Thanks in advance !

[khelmutlord]

I have a pending PR that should help w/ dynamic service creation. https://github.com/zephyrproject-rtos/zephyr/pull/84401

There is not currently a sample that demonstrates how to use these APIs.

Let me know if this helps!