https://devzone.nordicsemi.com/f/nordic-q-a/7313/ble_evt_t-header-evt_lenThe documentation for ble_evt_hdr_t says that the evt_len field is Length in octets excluding this header. However as far as I can tell it&#39;s actually the length in octets including the header. Here&#39;s the code I&#39;m using to pull events fromen-USTelligent Community 13Fri, 29 May 2015 13:34:28 GMThttps://devzone.nordicsemi.com/thread/25869?ContentTypeID=1Fri, 29 May 2015 13:34:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d19bc3df-04a0-4404-9fc6-1c2d1553f126RK<p>Thanks - appreciated.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/25868?ContentTypeID=1Fri, 29 May 2015 13:28:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cdff8bf2-6955-4783-9c55-244f95c7513eHung Bui<p>@RK: I tried here and confirm this. In our code I found len = offsetof(ble_evt_t, <em>the event</em> ) + sizeof(<em>the event</em>) and p_ble_evt-&gt;header.evt_len = len;</p> <p>I will report this internally for the correction in the documentation.</p><div style="clear:both;"></div>