keys_state_key_update()

int keys_state_key_update	(	struct keys_state *	ks,
		uint16_t	key_id,
		bool	pressed,
		bool *	ks_changed )

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

Notify keys state about a key press/release.

The utility can record multiple key presses for a given key ID. The same number of key releases is needed for the utility to report release of the key.

Parameters

[in]	ks	A keys state object.
[in]	key_id	Key ID.
[in]	pressed	Information if key was pressed or released.
[out]	ks_changed	Information if state of the pressed keys changed.

Return values

0	when successful.
-ENOENT	if key is released, but related key press was not recorded by the utility.
-ENOBUFS	if key is pressed and number of active keys exceeds the limit.