RE: How to show different services in 2 different advertising?

Jayant Tang — Sun, 26 Jan 2025 19:16:13 GMT

Hello Susheel,

Thank you for your reply. Now I'm using this method, and I modified the error return value:

return BT_GATT_ERR(BT_ATT_ERR_ATTRIBUTE_NOT_FOUND);

If I don't use this return value, the nRF Connect APP on Android Phone will be not able to read all services.

And I finally find a better way, it's to dynamically register and unregister my services. Using `bt_gatt_service_register` and `bt_gatt_service_unregister` in my connected and disconnected callbacks.

Best regards,

Jayant

RE: How to show different services in 2 different advertising?

Susheel Nuguru — Tue, 15 Oct 2024 07:32:02 GMT

Jayant,

that is exactly what you should do if you do not want some other services to be read by peers. During the discovery procedure, the peer tries to read everything in the attribute table by default. The additional check you added in the read_chrc callback is a good way to check that you only allow the peer to read attributes relevant to that connection only.