From 025d2ef81245cce52539339d18deb6e72e1d7ba8 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Thu, 9 Oct 2025 13:01:53 -0400
Subject: [PATCH] iso.rst: Add documentation for PAST/rebind

This documents how to use PAST procedures by doing bind on already
connected socket.
---
 doc/iso.rst | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/doc/iso.rst b/doc/iso.rst
index 2ad9c73e4..4d315132f 100644
--- a/doc/iso.rst
+++ b/doc/iso.rst
@@ -125,6 +125,26 @@ Broadcast Sink (Receiver) example:
     /* Bind to Broadcaster address */
     bind(iso_socket, (struct sockaddr *)addr, addr_len);
 
+Broadcast Source (Broadcaster) or Broadcast Sink (Receiver) Periodic
+Advertising Sync Transfer (PAST):
+
+.. code-block::
+
+    struct sockaddr_iso *addr;
+    size_t addr_len;
+
+    addr_len = sizeof(*addr) + sizeof(*addr->iso_bc);
+
+    memset(addr, 0, addr_len);
+    addr->iso_family = AF_BLUETOOTH;
+
+    /* Set destination address to PAST destination address */
+    bacpy(&addr->iso_bc->bc_bdaddr, (void *) bdaddr);
+    addr->iso_bc->bc_bdaddr_type = bdaddr_type;
+
+    /* Rebind already connected socket to PAST address */
+    bind(iso_socket, (struct sockaddr *)addr, addr_len);
+
 SOCKET OPTIONS (SOL_BLUETOOTH)
 ==============================
 
-- 
2.47.3