ble_hid_send_key()

int ble_hid_send_key

(

ble_hid_key_t

key

)

#include <applications/gesture_recognition/src/ble/hid/ble_hid.h>

Send a keyboard or consumer-control key via the HID profile.

Sends a key press followed by a key release for the specified key. Standard keys (arrows, F5, ESC) are sent as keyboard reports; media keys (play/pause, volume, track, mute) are sent as consumer-control reports.

Parameters

key	Key to send, see ble_hid_key_t

Return values

0	Key sent successfully.
-EBUSY	Device is currently in pairing mode; key not sent.
-ENOTCONN	No active BLE connection.
-EAGAIN	BLE link is up but the peer has not yet enabled HID notifications (CCCD not written); key not sent.
-EINVAL	Unknown or unsupported key code.
<0	Other negative errno from the underlying HID service.