hid_eventq_keypress_enqueue()

int hid_eventq_keypress_enqueue	(	struct hid_eventq *	q,
		uint16_t	id,
		bool	pressed,
		bool	drop_oldest )

#include <applications/nrf_desktop/src/util/hid_eventq.h>

Enqueue a keypress event in HID event queue.

The function enqueues an event related to key press or release.

If drop oldest is disabled, the function returns an error if it reached a limit of enqueued events. Otherwise, the function tries to remove the oldest keypress events ensuring that an enqueued event related to a key press is not removed if a matching key release event cannot be removed.

Parameters

[in]	q	HID event queue object.
[in]	id	ID of the enqueued key.
[in]	pressed	Information if the key was pressed or released.
[in]	drop_oldest	Drop the oldest HID events to make space for the new one.

Return values

0	when successful.
-ENOBUFS	if reached limit of enqueued HID events.
-ENOMEM	if internal memory allocation failed.