| NimBLE Host ATT Client Reference |
| -------------------------------- |
| |
| Introduction |
| ~~~~~~~~~~~~ |
| |
| The Attribute Protocol (ATT) is a mid-level protocol that all BLE devices use to exchange data. Data is exchanged when |
| an ATT client reads or writes an attribute belonging to an ATT server. Any device that needs to send or receive data |
| must support both the client and server functionality of the ATT protocol. The only devices which do not support ATT |
| are the most basic ones: broadcasters and observers (i.e., beaconing devices and listening devices). |
| |
| Most ATT functionality is not interesting to an application. Rather than use ATT directly, an application uses the |
| higher level GATT profile, which sits directly above ATT in the host. NimBLE exposes the few bits of ATT functionality |
| which are not encompassed by higher level GATT functions. This section documents the ATT functionality that the NimBLE |
| host exposes to the application. |
| |
| API |
| ~~~~~~ |
| |
| .. doxygengroup:: bt_host |
| :content-only: |
| :members: |