ble_nus_data_send()

uint32_t ble_nus_data_send	(	struct ble_nus *	nus,
		uint8_t *	data,
		uint16_t *	length,
		uint16_t	conn_handle )

#include <ble_nus.h>

Send data on the NUS TX characteristic as a notification.

Sends data if the notification bit in the CCCD is set for conn_handle.

Parameters

[in]	nus	Pointer to the Nordic UART Service structure.
[in]	data	Data to be sent.
[in,out]	length	In: Length of the data. Out: Number of bytes sent.
[in]	conn_handle	Connection handle of the destination client.

Return values

NRF_SUCCESS	On success.
NRF_ERROR_NULL	If nus, data, or length are NULL.
NRF_ERROR_INVALID_STATE	If the peer has not enabled TX notifications (CCCD not set for notifications).

Returns

In addition, this function may return any error returned by the following SoftDevice functions:

• sd_ble_gatts_value_get()
• sd_ble_gatts_hvx()