https://devzone.nordicsemi.com/f/nordic-q-a/28399/nrf51422-hid-consumer-controlDear All, I am sorry but I have to ask this question here, I searched and red trough the forum, tried the suggestions, nothing works. Basically I want to have a HID device with keyboard + consumer control buttons(volume up/down), I have the nrf51en-USTelligent Community 13Tue, 02 Feb 2016 09:28:17 GMThttps://devzone.nordicsemi.com/thread/112061?ContentTypeID=1Tue, 02 Feb 2016 09:28:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fef184e9-8efd-4473-b115-19ccb66c7adbKenneth<p>Hi, thanks for the update, maybe you can close the case with the updated details? I am sure someone else might forget to send the key release.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/112063?ContentTypeID=1Thu, 28 Jan 2016 14:04:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16cddbfa-8636-44e9-b832-3160e210bc83Laszlo<p>IMPORTANT: send the key release for the consumer control buttons!</p> <p>The report map with the merged consumer control is: static uint8_t report_map_data[] = { 0x05, 0x01, // Usage Page (Generic Desktop) 0x09, 0x06, // Usage (Keyboard) 0xA1, 0x01, // Collection (Application) 0x85, 0x01, // Report Id (1)</p> <pre><code> 0x05, 0x07, // Usage Page (Key Codes) 0x19, 0xe0, // Usage Minimum (224) 0x29, 0xe7, // Usage Maximum (231) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x01, // Logical Maximum (1) 0x75, 0x01, // Report Size (1) 0x95, 0x08, // Report Count (8) 0x81, 0x02, // Input (Data, Variable, Absolute) 0x95, 0x01, // Report Count (1) 0x75, 0x08, // Report Size (8) 0x81, 0x01, // Input (Constant) reserved byte(1) 0x95, 0x05, // Report Count (5) 0x75, 0x01, // Report Size (1) 0x05, 0x08, // Usage Page (Page# for LEDs) 0x19, 0x01, // Usage Minimum (1) 0x29, 0x05, // Usage Maximum (5) 0x91, 0x02, // Output (Data, Variable, Absolute), Led report 0x95, 0x01, // Report Count (1) 0x75, 0x03, // Report Size (3) 0x91, 0x01, // Output (Data, Variable, Absolute), Led report padding 0x95, 0x06, // Report Count (6) 0x75, 0x08, // Report Size (8) 0x15, 0x00, // Logical Minimum (0) 0x25, 0x65, // Logical Maximum (101) 0x05, 0x07, // Usage Page (Key codes) 0x19, 0x00, // Usage Minimum (0) 0x29, 0x65, // Usage Maximum (101) 0x81, 0x00, // Input (Data, Array) Key array(6 bytes) 0x09, 0x05, // Usage (Vendor Defined) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Count (2) 0x95, 0x02, // Report Size (8 bit) 0xB1, 0x02, // Feature (Data, Variable, Absolute) 0xC0, // End Collection (Application) // Report ID 2: Advanced buttons 0x05, 0x0C, // Usage Page (Consumer) 0x09, 0x01, // Usage (Consumer Control) 0xA1, 0x01, // Collection (Application) 0x85, 0x02, // Report Id (2) 0x15, 0x00, // Logical minimum (0) 0x25, 0x01, // Logical maximum (1) 0x75, 0x01, // Report Size (1) 0x95, 0x01, // Report Count (1) 0x09, 0xCD, // Usage (Play/Pause) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x0A, 0x83, 0x01, // Usage (AL Consumer Control Configuration) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x09, 0xB5, // Usage (Scan Next Track) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x09, 0xB6, // Usage (Scan Previous Track) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x09, 0xEA, // Usage (Volume Down) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x09, 0xE9, // Usage (Volume Up) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x0A, 0x25, 0x02, // Usage (AC Forward) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0x0A, 0x24, 0x02, // Usage (AC Back) 0x81, 0x02, // Input (Data,Value,Relative,Bit Field) 0xC0 // End Collection }; </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/112062?ContentTypeID=1Wed, 27 Jan 2016 16:19:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:50ad8a5a-472a-479b-8b70-6694f64749b3Laszlo<p>I will answer to my own question, the problem was that I wasn&#39;t sending the key release... I will come back with a full description and code example asap. Now working on making it for IOS, since IOS doesn&#39;t see it as HID device, just a plain bluetooth device.</p><div style="clear:both;"></div>