From 45edcafb066fcaf2282424509afbe578f04fc844 Mon Sep 17 00:00:00 2001
From: Josh Wu <joshwu@google.com>
Date: Wed, 27 Sep 2023 23:30:26 +0800
Subject: [PATCH] SCO: A loopback example

---
 examples/run_hfp_gateway.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/examples/run_hfp_gateway.py b/examples/run_hfp_gateway.py
index 13a2ed93..5cb3eb3d 100644
--- a/examples/run_hfp_gateway.py
+++ b/examples/run_hfp_gateway.py
@@ -31,6 +31,7 @@ from bumble.core import (
     BT_BR_EDR_TRANSPORT,
 )
 from bumble import rfcomm, hfp
+from bumble.hci import HCI_SynchronousDataPacket
 from bumble.sdp import (
     Client as SDP_Client,
     DataElement,
@@ -197,6 +198,13 @@ async def main():
             print('@@@ Disconnected from RFCOMM server')
             return
 
+        def on_sco(connection_handle: int, packet: HCI_SynchronousDataPacket):
+            # Reset packet and loopback
+            packet.packet_status = 0
+            device.host.send_hci_packet(packet)
+
+        device.host.on('sco_packet', on_sco)
+
         # Protocol loop (just for testing at this point)
         protocol = hfp.HfpProtocol(session)
         while True: