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| <div class="section" id="nimble-host-att-client-reference"> |
| <h1>NimBLE Host ATT Client Reference<a class="headerlink" href="#nimble-host-att-client-reference" title="Permalink to this headline">¶</a></h1> |
| <div class="section" id="introduction"> |
| <h2>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h2> |
| <p>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).</p> |
| <p>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.</p> |
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| <div class="section" id="header"> |
| <h2>Header<a class="headerlink" href="#header" title="Permalink to this headline">¶</a></h2> |
| <div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">"host/ble_hs.h"</span> |
| </pre></div> |
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