# Serial Port Profile Source: [https://docs.qualcomm.com/doc/80-70017-13/topic/set_up_bluetooth_in_spp.html](https://docs.qualcomm.com/doc/80-70017-13/topic/set_up_bluetooth_in_spp.html) SPP is a Bluetooth profile that enables wireless communication between devices over a virtual serial port. To perform Bluetooth SPP server or client functions, you must first complete the steps in the following procedure. ## Set up device for Bluetooth SPP functions **Prerequisites** - Enable SSH to access your host device. For instructions, see [Log in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70017-254/how_to.html#use-ssh). - Place the DUT and the remote device in the Bluetooth vicinity. **Procedure** 1. Run the SSH in command prompt using the following command: ssh root@Copy to clipboard **Example** If the IP address of the device is `10.92.160.222`, run the following command: ssh root@10.92.160.222Copy to clipboard 2. Connect to the SSH by entering the following password: oelinux123Copy to clipboard 3. Open the Bluetooth test application by running the following command: btappCopy to clipboard **Sample output** sh-5.1# btapp get_ap_interface :: get_ap_interface ***************** Menu ******************* gap_menu test_menu a2dp_sink_menu hfp_client_menu gattctest_menu gattstest_menu hogp_menu hfp_ag_menu a2dp_source_menu spp_client_menu spp_server_menu eslap_menu exit ******************************************Copy to clipboard 4. Enable Bluetooth and pair the device as follows: 1. Go to the Gap Menu by running the following command: gap_menuCopy to clipboard 2. Enable Bluetooth by running the following command: enableCopy to clipboard **Sample output** gap_menu ***************** Menu ******************* enable disable inquiry cancel_inquiry get_role_req eg. get_role_req 00:11:22:33:44:55 pair eg. pair 00:11:22:33:44:55 0(auto)/1(BREDR)/2(BLE) unpair eg. unpair 00:11:22:33:44:55 inquiry_list bonded_list get_state get_bt_name get_bt_address set_bt_name eg. set_bt_name MDM_Fluoride set_scan_mode eg. set_scan_mode 0 --0-BT_SCAN_MODE_NONE,1- BT_SCAN_MODE_CONNECTABLE,2-BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE set_afh eg. set_afh 112233445566778899f0 send_hci_cmd eg. send_hci_cmd 01,04,05,33,8b,9e,0a,00 - For Inquiry read_clock eg. read_clock 0(local)/1(acl connection) 00:11:22:33:44:55 main_menu switch_role_req eg. switch_role_req 00:11:22:33:44:55 0 or get_role_req 00:11:22:33:44:55 1 ****************************************** enable current State = 0, new state = 1 BT State is ONCopy to clipboard 3. Pair the device for SPP outgoing by running the following command: pair Copy to clipboard To accept the outgoing/incoming pairing, enter `yes`. **Parameters** - [Run Bluetooth inquiry scan](https://docs.qualcomm.com/doc/80-70017-13/topic/gap_commands.html#gap_commands__section_iy1_xnf_41c) to get the `` of the remote device. - The values of the ``parameter can be: - `0`: Auto selection - `1`: BR/EDR - `2`: Bluetooth Low Energy **Example** To initiate a BR/EDR pairing for `` `98:09:cf:a9:82:23`, run the following command: pair 98:09:cf:a9:82:23 1Copy to clipboard **Sample output** pair 98:09:cf:a9:82:23 1 BR/EDR Bonding ACL state:0 change with reason 00 for device: f8:7d:76:9d:9b:6b ************************************************ Pairing state for MyDeviceA is BOND NONE ************************************************ BT pairing request :: MyDeviceB :: Pairing Code :: 776996 ************************************************ **Please enter yes / no ** yes ************************************************ Pairing state for MyDeviceB is BONDED ************************************************Copy to clipboard 4. Return to the Main Menu by running the following command: main_menuCopy to clipboard 5. Go to the SPP server or client menu, as required. - To go to the SPP Server Menu, run the following command from the `main_menu`: spp_server_menuCopy to clipboard **Sample output** main_menu ***************** Menu ******************* gap_menu test_menu a2dp_sink_menu hfp_client_menu gattctest_menu gattstest_menu hogp_menu hfp_ag_menu a2dp_source_menu spp_client_menu spp_server_menu eslap_menu exit ****************************************** spp_server_menu ***************** Menu ******************* start_server stop_server send_fileeg: send_file /var/fileName.txt recv_fileeg: recv_file /var/fileName.txt send_dataeg: send_data 1000[Note:1000 means 1MB] recv_data main_menu ******************************************Copy to clipboard For SPP server functions, see [Perform Bluetooth SPP server functions](https://docs.qualcomm.com/doc/80-70017-13/topic/perform_bluetooth_functions_in_spp_server.html). - To go to the SPP Client Menu, run the following command from the `main_menu`: spp_client_menuCopy to clipboard **Sample output** main_menu ***************** Menu ******************* gap_menu test_menu a2dp_sink_menu hfp_client_menu gattctest_menu gattstest_menu hogp_menu hfp_ag_menu a2dp_source_menu spp_client_menu spp_server_menu eslap_menu exit ****************************************** spp_client_menu ***************** Menu ******************* connect disconnect send_fileeg: send_file /var/fileName.txt recv_fileeg: recv_file /var/fileName.txt send_dataeg: send_data 1000[Note:1000 means 1MB] recv_data main_menu ******************************************Copy to clipboard For SPP client functions, see [Perform Bluetooth SPP client functions](https://docs.qualcomm.com/doc/80-70017-13/topic/perform_bluetooth_functions_in_spp_client.html). 6. Install any third-party Bluetooth host application, which supports SPP client and server roles, on a remote device. For example, a Bluetooth SPP server/client application from the Google Play Store. - DUT: Test device - Remote device: Any smartphone - **[Perform Bluetooth SPP server functions](https://docs.qualcomm.com/doc/80-70017-13/topic/perform_bluetooth_functions_in_spp_server.html)** You can perform SPP server functions using the `spp_server_menu` options. - **[Perform Bluetooth SPP client functions](https://docs.qualcomm.com/doc/80-70017-13/topic/perform_bluetooth_functions_in_spp_client.html)** You can perform SPP client functions using the `spp_client_menu` options. **Parent Topic:** [Verify functionality of Fluoride stack](https://docs.qualcomm.com/doc/80-70017-13/topic/bluetooth_usecases.html) Last Published: Dec 26, 2024 [Previous Topic Perform Bluetooth GAP functions](https://docs.qualcomm.com/bundle/publicresource/80-70017-13/topics/gap_commands.md) [Next Topic Perform Bluetooth SPP server functions](https://docs.qualcomm.com/bundle/publicresource/80-70017-13/topics/perform_bluetooth_functions_in_spp_server.md)