Obtaining Send_Add_Group_Request command status.

[Angry_Oatmeal]

Hello there,

I am trying to send an add_group_request to a device on the network, and want to capture the send status of the device to check the status of the call. I am doing this by assigning a callback function add_group_callback() to the ZB_ZCL_GROUPS_SEND_ADD_GROUP_REQ() function, as below:

ZB_ZCL_GROUPS_SEND_ADD_GROUP_REQ(bufid,
                                    dst_addr,
                                    ZB_APS_ADDR_MODE_16_ENDP_PRESENT,
                                    dst_ep,
                                    LIGHT_SWITCH_ENDPOINT,
                                    ZB_AF_HA_PROFILE_ID,
                                    ZB_ZCL_DISABLE_DEFAULT_RESPONSE,
                                    add_group_callback,
                                    group);

The command works just fine, and I am able to add the group to the receiving device's grouping table. However I just need some reassurance as to how I am supposed to parse the callback parameter.

I am currently trying to use the zb_buf_get_status() function in order to extract the status directly from the bufid, as below. This gives me a status of 0, which seems to make sense.

static zb_void_t add_group_callback(zb_bufid_t bufid) {
    zb_uint16_t status_buf = zb_buf_get_status(bufid);

    NRF_LOG_INFO("Add group status buff %d", status_buf);

    if (bufid)
    {
        zb_buf_free(bufid);
    }
}

My 3 questions are: 

1. Is the above method the correct way of getting the send status?
2. I would like to capture the response of the device which receives the add_group_req command. How would I go about doing this? I am sure it will have something to do with the ZB_ZCL_GROUPS_GET_ADD_GROUP_RES() command, but I am not sure how to use it.
3. Could you point me to a list of status codes and their meaning?

Thank you very much for your time,
Angry Oatmeal.

[Marjeris Romero]

Hi,

Sorry for the late reply. The status of the transmission is stored in zb_zcl_command_send_status_t.

So for getting the command status from the callback perhaps something like this is better, the status would be stored  inside p_cmd_add_group_status:

static zb_void_t add_group_callback(zb_bufid_t bufid) {
    zb_zcl_command_send_status_t * p_cmd_add_group_status;
    
    p_cmd_add_group_status = ZB_GET_BUF_PARAM(bufid, zb_zcl_command_send_status_t);
    
    if (bufid)
    {
        zb_buf_free(bufid);
    }
}

Best regards,

Marjeris

[Angry_Oatmeal]

Hello msromero,

Apologies for the even later response. Thank you for the answer, this makes perfect sense. However, the first image has not loaded, so I'm not sure how important it was for the point you are making.

Regardless, you have answered my question.

Thanks you,
Angry Oatmeal