The difference between (dm_handle_t) "connection_id" and "conn_handle"

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

Petter Myhre — Mon, 30 Jan 2017 11:48:18 GMT

Great! If I answered your question, please accept my answer by clicking the circle next to it. Thanks.

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

is — Thu, 26 Jan 2017 20:20:32 GMT

Thank you very much! That's what I need.

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

Petter Myhre — Thu, 26 Jan 2017 15:27:18 GMT

It seems it made this way because the valid connection handles are from 0 to 0xFFFD, while valid connection IDs are 0 to 0x7, but in practice the connection handles are always 0 to 0x7 (if 8 connections are supported), so they should always be the same.

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

is — Thu, 26 Jan 2017 11:48:23 GMT

For what should I use client_find()? If I could do:

index = p_evt->conn_handle;

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

is — Thu, 26 Jan 2017 11:42:24 GMT

Ok, Example "multilink central" SDK 10.0.0:

uint32_t client_find(uint16_t conn_handle)
{
    for (i = 0; i < MAX_CLIENTS; i++)
    {
        if (m_client[i].srv_db.conn_handle == conn_handle)
        {
            return i;
        }
    }
}

void db_discovery_evt_handler(ble_db_discovery_evt_t * p_evt)
{
	/* ... */
	index = client_find(p_evt->conn_handle);
	/* ... */
}

void client_handling_ble_evt_handler(ble_evt_t * p_ble_evt)
{
	/* ... */
    index = client_find(p_ble_evt->evt.gattc_evt.conn_handle);
	/* ... */
}

uint32_t client_handling_create(const dm_handle_t * p_handle, uint16_t conn_handle)
{
	/* ALWAYS: p_handle->connection_id == conn_handle */
    m_client[p_handle->connection_id].srv_db.conn_handle = conn_handle;
	/* ... */
}

client_find() - useless!

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

Petter Myhre — Thu, 26 Jan 2017 10:10:10 GMT

Can you please try to explain some more? What exactly is the problem?

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

is — Wed, 25 Jan 2017 15:19:42 GMT

Yes, I mean the "connection id" from device manager events and the "connection handle" form ble events.

RE: The difference between (dm_handle_t) "connection_id" and "conn_handle"

Petter Myhre — Wed, 25 Jan 2017 14:12:40 GMT

I'm not sure I understand. If there are any difference? connection_id identifies the active connection instance inside the device manager module. What you mean by "conn_handle"? Do you mean the connection handle that identifies what connection a BLE event belongs to? p_ble_evt->evt.gap_evt.conn_handle;?