init_tcicb函数有调用，但snapshot函数没调用

init_tcicb函数有调用，但snapshot函数没调用

static void init_tcicb()
{_tci_cb.get_info = get_info;_tci_cb.get_feature = get_device_feature;_tci_cb.get_state = get_device_state,_tci_cb.on_apmode_login = on_apmode_login;_tci_cb.qrcode_start = on_qrcode_start;_tci_cb.qrcode_get_y_data = on_get_y_data;_tci_cb.qrcode_end = on_qrcode_end;_tci_cb.on_ota_download_start = on_ota_download_start;_tci_cb.on_ota_download_data = on_ota_download_data;_tci_cb.on_ota_download_finished = on_ota_download_finished;_tci_cb.on_talkback_start = on_talkback_start;_tci_cb.talkback = talkback;_tci_cb.on_talkback_stop = on_talkback_stop;_tci_cb.snapshot =