[PATCH BlueZ v4 0/6] bap: Release cached ASEs on ClearConfiguration

[PATCH BlueZ v4 0/6] bap: Release cached ASEs on ClearConfiguration

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

An acceptor may keep an ASE in Codec Configured, caching its codec
configuration, once the initiator removes the transport. The initiator
then has no way to get rid of it, as it no longer has a transport to
release.

Release such cached ASEs on ClearConfiguration of an endpoint, and add
endpoint.clear to bluetoothctl to exercise it, with a functional test.

This series is independent of the other two.

v2: Wait for the release of the cached ASEs before replying to
    ClearConfiguration, validate the transport path of endpoint.clear and
    update the remote PAC of an ASE when it is reused (new patch 2/6).

v4: Complete every pending release of a stream once it is idle, including
    the ones left behind by a failed release.
v3: Reply to ClearConfiguration once the cached ASEs are idle, and
    report a failed release as an error.
v2: Wait for the release of the cached ASEs before replying, validate the
    transport path of endpoint.clear and update the remote PAC of an ASE
    when it is reused (new patch 2/6).

Luiz Augusto von Dentz (6):
  shared/bap: Add bt_bap_foreach_stream and bt_bap_stream_get_rpac
  shared/bap: Update the remote PAC when reusing an ASE
  bap: Release cached ASEs on ClearConfiguration of an endpoint
  client/player: Add endpoint.clear command
  doc/functional-bap: Document clearing a cached configuration
  test: functional: Cover clearing a cached configuration

 client/player.c               |  57 ++++++++++++
 doc/bluetoothctl-endpoint.rst |  20 +++++
 doc/functional-bap.rst        |  24 ++++++
 profiles/audio/bap.c          | 158 ++++++++++++++++++++++++++++++++--
 src/shared/bap.c              |  32 +++++++
 src/shared/bap.h              |   8 ++
 test/functional/test_bap.py   |  23 +++++
 7 files changed, 313 insertions(+), 9 deletions(-)

-- 
2.56.0

[PATCH BlueZ v4 1/6] shared/bap: Add bt_bap_foreach_stream and bt_bap_stream_get_rpac

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Allow iterating over the streams of a session and getting the remote
PAC of a stream, so streams can be found by their remote endpoint.

Assisted-by: Claude:claude-opus-5-5
---
 src/shared/bap.c | 31 +++++++++++++++++++++++++++++++
 src/shared/bap.h |  8 ++++++++
 2 files changed, 39 insertions(+)

diff --git a/src/shared/bap.c b/src/shared/bap.c
index 8cb7fb40f16c..e45d12144acb 100644
--- a/src/shared/bap.c
+++ b/src/shared/bap.c
@@ -4740,6 +4740,14 @@ bool bt_bap_stream_is_client(struct bt_bap_stream *stream)
 	return stream->client;
 }
 
+struct bt_bap_pac *bt_bap_stream_get_rpac(struct bt_bap_stream *stream)
+{
+	if (!stream)
+		return NULL;
+
+	return stream->rpac;
+}
+
 uint8_t bt_bap_stream_get_type(struct bt_bap_stream *stream)
 {
 	if (!stream)
@@ -7020,6 +7028,29 @@ struct bt_bap *bt_bap_stream_get_session(struct bt_bap_stream *stream)
 	return stream->bap;
 }
 
+struct stream_foreach_data {
+	bt_bap_stream_foreach_t func;
+	void *user_data;
+};
+
+static void stream_foreach(void *data, void *user_data)
+{
+	struct stream_foreach_data *d = user_data;
+
+	d->func(data, d->user_data);
+}
+
+void bt_bap_foreach_stream(struct bt_bap *bap, bt_bap_stream_foreach_t func,
+							void *user_data)
+{
+	struct stream_foreach_data d = { func, user_data };
+
+	if (!bap || !func)
+		return;
+
+	queue_foreach(bap->streams, stream_foreach, &d);
+}
+
 uint8_t bt_bap_stream_get_state(struct bt_bap_stream *stream)
 {
 	if (!stream)
diff --git a/src/shared/bap.h b/src/shared/bap.h
index 242bfbb39b30..00b74de0f272 100644
--- a/src/shared/bap.h
+++ b/src/shared/bap.h
@@ -124,6 +124,8 @@ uint8_t bt_bap_stream_get_type(struct bt_bap_stream *stream);
 
 bool bt_bap_stream_is_client(struct bt_bap_stream *stream);
 
+struct bt_bap_pac *bt_bap_stream_get_rpac(struct bt_bap_stream *stream);
+
 struct bt_bap_stream *bt_bap_pac_get_stream(struct bt_bap_pac *pac);
 
 /* Session related function */
@@ -172,6 +174,12 @@ const char *bt_bap_stream_statestr(uint8_t state);
 void bt_bap_foreach_pac(struct bt_bap *bap, uint8_t type,
 			bt_bap_pac_foreach_t func, void *user_data);
 
+typedef void (*bt_bap_stream_foreach_t)(struct bt_bap_stream *stream,
+							void *user_data);
+
+void bt_bap_foreach_stream(struct bt_bap *bap, bt_bap_stream_foreach_t func,
+							void *user_data);
+
 int bt_bap_pac_get_vendor_codec(struct bt_bap_pac *pac, uint8_t *id,
 				uint16_t *cid, uint16_t *vid,
 				struct iovec **data, struct iovec **metadata);
-- 
2.56.0

[PATCH BlueZ v4 2/6] shared/bap: Update the remote PAC when reusing an ASE

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

An ASE kept by a stream, e.g. one the server cached after its release,
may be reused for another remote PAC, which replaced the local PAC but
left the stream pointing to the previous remote one. Update it as well,
so that it matches the PAC the ASE is now configured for.

Assisted-by: Claude:claude-opus-5-5
---
 src/shared/bap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/shared/bap.c b/src/shared/bap.c
index e45d12144acb..4fd4055565f7 100644
--- a/src/shared/bap.c
+++ b/src/shared/bap.c
@@ -6975,6 +6975,7 @@ static struct bt_bap_stream *bap_ucast_stream_new(struct bt_bap *bap,
 		 */
 		bap_stream_clear_cfm(stream);
 		stream->lpac = lpac;
+		stream->rpac = rpac;
 		util_iov_free(stream->cc, 1);
 		stream->cc = util_iov_dup(data, 1);
 		stream->need_reconfig = true;
-- 
2.56.0

[PATCH BlueZ v4 3/6] bap: Release cached ASEs on ClearConfiguration of an endpoint

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Once a stream is released, the server may cache the codec configuration
of its ASE, leaving it in Codec Configured state, while the setup of
the stream is freed. ClearConfiguration only closed the streams that
have a setup, so it could not release such an ASE anymore.

When ClearConfiguration is given the path of the endpoint, also release
its streams in Codec Configured state that have no setup, as a client
may release an ASE in that state (ASCS Table 3.2, BAP 5.6.6).

Assisted-by: Claude:claude-opus-5-5
---
 profiles/audio/bap.c | 158 ++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 149 insertions(+), 9 deletions(-)

diff --git a/profiles/audio/bap.c b/profiles/audio/bap.c
index a0e0ba60d817..478e8358e551 100644
--- a/profiles/audio/bap.c
+++ b/profiles/audio/bap.c
@@ -46,6 +46,7 @@
 #include "src/shared/gatt-client.h"
 #include "src/shared/gatt-server.h"
 #include "src/shared/bap.h"
+#include "src/shared/ascs.h"
 #include "src/shared/tmap.h"
 #include "src/shared/gmap.h"
 
@@ -138,6 +139,7 @@ struct bap_data {
 	struct queue *bcast;
 	struct queue *bcast_snks;
 	struct queue *server_streams;
+	struct queue *cached_releases;
 	GIOChannel *listen_io;
 	bool pa_synced;
 	unsigned int pa_timer;
@@ -149,6 +151,8 @@ struct bap_data {
 
 static struct queue *sessions;
 
+static void cached_release_cancel(void *data);
+
 static int setup_config(struct bap_setup *setup, bap_setup_ready_func_t cb,
 							void *user_data);
 static int bap_select_all(struct bap_data *data, bool reconfigure,
@@ -196,6 +200,7 @@ static void bap_data_free(struct bap_data *data)
 	queue_destroy(data->srcs, ep_unregister);
 	queue_destroy(data->bcast, ep_unregister);
 	queue_destroy(data->server_streams, NULL);
+	queue_destroy(data->cached_releases, cached_release_cancel);
 	data->bcast_snks = NULL;
 	queue_destroy(bcast_snks, setup_free);
 
@@ -996,8 +1001,9 @@ static int setup_close(struct bap_setup *setup, bap_setup_close_func_t cb,
 struct ep_close_data {
 	int remaining;
 	int count;
+	int err;
 	const char *path;
-	void (*cb)(int count, void *user_data);
+	void (*cb)(int count, int err, void *user_data);
 	void *user_data;
 };
 
@@ -1013,7 +1019,7 @@ static void ep_close_setup_cb(struct bap_setup *setup, void *user_data)
 		return;
 
 	if (epdata->cb)
-		epdata->cb(epdata->count, epdata->user_data);
+		epdata->cb(epdata->count, epdata->err, epdata->user_data);
 
 	free(epdata);
 }
@@ -1035,8 +1041,125 @@ static void ep_close_setup(void *data, void *user_data)
 		epdata->count++;
 }
 
+static struct bap_setup *bap_find_setup_by_stream(struct bap_data *data,
+					struct bt_bap_stream *stream);
+
+struct cached_release_data {
+	struct bap_ep *ep;
+	struct ep_close_data *epdata;
+};
+
+/* The release of a cached stream, done once the stream is idle */
+struct cached_release {
+	struct bt_bap_stream *stream;
+	struct ep_close_data *epdata;
+	int refs;
+	bool done;
+};
+
+static void cached_release_unref(struct cached_release *cr)
+{
+	if (--cr->refs)
+		return;
+
+	free(cr);
+}
+
+static void cached_release_done(struct cached_release *cr, int err)
+{
+	if (cr->done)
+		return;
+
+	cr->done = true;
+
+	if (err)
+		cr->epdata->err = err;
+
+	ep_close_setup_cb(NULL, cr->epdata);
+}
+
+static bool match_cached_release(const void *data, const void *match_data)
+{
+	const struct cached_release *cr = data;
+
+	return cr->stream == match_data;
+}
+
+static void bap_cached_release_idle(struct bap_data *data,
+					struct bt_bap_stream *stream)
+{
+	struct cached_release *cr;
+
+	/* Also the ones of a failed release, left behind for this stream */
+	while ((cr = queue_remove_if(data->cached_releases,
+					match_cached_release, stream))) {
+		cached_release_done(cr, 0);
+		cached_release_unref(cr);
+	}
+}
+
+static void cached_release_cancel(void *data)
+{
+	struct cached_release *cr = data;
+
+	cached_release_done(cr, -ECANCELED);
+	cached_release_unref(cr);
+}
+
+static void ep_release_cached_cb(struct bt_bap_stream *stream, uint8_t code,
+					uint8_t reason, void *user_data)
+{
+	struct cached_release *cr = user_data;
+
+	/* The ASE is idle once it is notified, so only a failure completes
+	 * the release here.
+	 */
+	if (code != BT_ASCS_RSP_SUCCESS)
+		cached_release_done(cr, -EIO);
+
+	cached_release_unref(cr);
+}
+
+static void ep_release_cached(struct bt_bap_stream *stream, void *user_data)
+{
+	struct cached_release_data *data = user_data;
+	struct bap_ep *ep = data->ep;
+	struct cached_release *cr;
+
+	/* The server may have cached the codec configuration of a released
+	 * ASE, which has no setup anymore, so release it again.
+	 */
+	if (bt_bap_stream_get_rpac(stream) != ep->rpac ||
+			bt_bap_stream_get_state(stream) !=
+					BT_BAP_STREAM_STATE_CONFIG ||
+			bap_find_setup_by_stream(ep->data, stream))
+		return;
+
+	DBG("stream %p", stream);
+
+	cr = new0(struct cached_release, 1);
+	cr->stream = stream;
+	cr->epdata = data->epdata;
+	cr->refs = 2;
+
+	data->epdata->remaining++;
+
+	if (!ep->data->cached_releases)
+		ep->data->cached_releases = queue_new();
+
+	queue_push_tail(ep->data->cached_releases, cr);
+
+	if (!bt_bap_stream_release(stream, ep_release_cached_cb, cr)) {
+		queue_remove(ep->data->cached_releases, cr);
+		data->epdata->remaining--;
+		free(cr);
+	}
+}
+
 static void ep_close(struct bap_ep *ep, const char *transport_path,
-			void (*cb)(int count, void *user_data), void *user_data)
+			bool cached,
+			void (*cb)(int count, int err, void *user_data),
+			void *user_data)
 {
 	struct ep_close_data *epdata;
 
@@ -1051,6 +1174,15 @@ static void ep_close(struct bap_ep *ep, const char *transport_path,
 	if (ep)
 		queue_foreach(ep->setups, ep_close_setup, epdata);
 
+	/* The cached streams have to be released before replying, as an ASE
+	 * still being released can't be configured again.
+	 */
+	if (cached && ep && ep->rpac) {
+		struct cached_release_data data = { ep, epdata };
+
+		bt_bap_foreach_stream(ep->data->bap, ep_release_cached, &data);
+	}
+
 	epdata->path = NULL;
 	ep_close_setup_cb(NULL, epdata);
 }
@@ -1302,14 +1434,16 @@ struct clear_configuration_data {
 	bool all;
 };
 
-static void clear_configuration_cb(int count, void *user_data)
+static void clear_configuration_cb(int count, int err, void *user_data)
 {
 	struct clear_configuration_data *data = user_data;
 	DBusMessage *reply;
 
 	DBG("%p", data);
 
-	if (!data->all && count == 0)
+	if (err)
+		reply = btd_error_failed(data->msg, strerror(-err));
+	else if (!data->all && count == 0)
 		reply = btd_error_invalid_args(data->msg);
 	else
 		reply = dbus_message_new_method_return(data->msg);
@@ -1338,7 +1472,8 @@ static DBusMessage *clear_configuration(DBusConnection *conn, DBusMessage *msg,
 	cbdata->all = (path == NULL);
 
 	DBG("%p %s %s", cbdata, ep->path, path ? path : "NULL");
-	ep_close(ep, path, clear_configuration_cb, cbdata);
+
+	ep_close(ep, path, !path, clear_configuration_cb, cbdata);
 	return NULL;
 }
 
@@ -1403,7 +1538,7 @@ static void reconfigure_select_cb(int err, void *user_data)
 	free(data);
 }
 
-static void reconfigure_close_cb(int count, void *user_data)
+static void reconfigure_close_cb(int count, int err, void *user_data)
 {
 	struct reconfigure_data *data = user_data;
 
@@ -1424,7 +1559,7 @@ static void ep_close_if_reconfigure(void *obj, void *user_data)
 
 	if (ep->reconfigure) {
 		data->remaining++;
-		ep_close(ep, NULL, reconfigure_close_cb, data);
+		ep_close(ep, NULL, false, reconfigure_close_cb, data);
 	}
 }
 
@@ -1464,7 +1599,7 @@ static DBusMessage *reconfigure(DBusConnection *conn, DBusMessage *msg,
 	queue_foreach(data->snks, ep_close_if_reconfigure, cbdata);
 	queue_foreach(data->srcs, ep_close_if_reconfigure, cbdata);
 
-	reconfigure_close_cb(0, cbdata);
+	reconfigure_close_cb(0, 0, cbdata);
 	return NULL;
 }
 
@@ -3031,6 +3166,8 @@ static void bap_state(struct bt_bap_stream *stream, uint8_t old_state,
 			setup_free(setup);
 		else
 			queue_remove(data->server_streams, stream);
+
+		bap_cached_release_idle(data, stream);
 		break;
 	case BT_BAP_STREAM_STATE_CONFIG:
 		if (setup) {
@@ -4054,6 +4191,9 @@ static int bap_disconnect(struct btd_service *service)
 	queue_destroy(data->server_streams, NULL);
 	data->server_streams = NULL;
 
+	queue_destroy(data->cached_releases, cached_release_cancel);
+	data->cached_releases = NULL;
+
 	bt_bap_detach(data->bap);
 
 	btd_service_disconnecting_complete(service, 0);
-- 
2.56.0

[PATCH BlueZ v4 4/6] client/player: Add endpoint.clear command

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Add a command calling ClearConfiguration on a remote endpoint, to close
the stream of a given transport or all the streams of the endpoint.

Assisted-by: Claude:claude-opus-5-5
---
 client/player.c               | 57 +++++++++++++++++++++++++++++++++++
 doc/bluetoothctl-endpoint.rst | 20 ++++++++++++
 2 files changed, 77 insertions(+)

diff --git a/client/player.c b/client/player.c
index 88221076c1e0..932338ef53a2 100644
--- a/client/player.c
+++ b/client/player.c
@@ -4030,6 +4030,60 @@ static void endpoint_set_config_bcast(struct endpoint_config *cfg)
 		config_endpoint_iso_group, cfg);
 }
 
+static void clear_endpoint_setup(DBusMessageIter *iter, void *user_data)
+{
+	const char *path = user_data;
+
+	dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &path);
+}
+
+static void clear_endpoint_reply(DBusMessage *message, void *user_data)
+{
+	DBusError error;
+
+	dbus_error_init(&error);
+
+	if (dbus_set_error_from_message(&error, message)) {
+		bt_shell_printf("Failed to clear configuration: %s\n",
+								error.name);
+		dbus_error_free(&error);
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	bt_shell_printf("Configuration cleared\n");
+
+	return bt_shell_noninteractive_quit(EXIT_SUCCESS);
+}
+
+static void cmd_clear_endpoint(int argc, char *argv[])
+{
+	GDBusProxy *proxy;
+	const char *path;
+
+	proxy = g_dbus_proxy_lookup(endpoints, NULL, argv[1],
+						BLUEZ_MEDIA_ENDPOINT_INTERFACE);
+	if (!proxy) {
+		bt_shell_printf("Endpoint %s not found\n", argv[1]);
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	/* The path of the endpoint itself clears all its transports */
+	path = argc > 2 ? argv[2] : g_dbus_proxy_get_path(proxy);
+
+	if (!dbus_validate_path(path, NULL)) {
+		bt_shell_printf("Invalid transport path %s\n", path);
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+
+	if (!g_dbus_proxy_method_call(proxy, "ClearConfiguration",
+					clear_endpoint_setup,
+					clear_endpoint_reply,
+					(void *) path, NULL)) {
+		bt_shell_printf("Failed to clear configuration\n");
+		return bt_shell_noninteractive_quit(EXIT_FAILURE);
+	}
+}
+
 static void cmd_config_endpoint(int argc, char *argv[])
 {
 	struct endpoint_config *cfg;
@@ -4625,6 +4679,9 @@ static const struct bt_shell_menu endpoint_menu = {
 						cmd_config_endpoint,
 						"Configure Endpoint",
 						endpoint_generator },
+	{ "clear",        "<endpoint> [transport]", cmd_clear_endpoint,
+						"Clear Endpoint Configuration",
+						endpoint_generator },
 	{ "presets",      "<endpoint>/<UUID> [codec[:company]] [preset] "
 						"[codec config] [metadata]",
 						cmd_presets_endpoint,
diff --git a/doc/bluetoothctl-endpoint.rst b/doc/bluetoothctl-endpoint.rst
index 019e64e38452..ba30ef769ec4 100644
--- a/doc/bluetoothctl-endpoint.rst
+++ b/doc/bluetoothctl-endpoint.rst
@@ -154,6 +154,26 @@ Note:
 If the endpoint was registered by an audio server, it can't be configured from bluetoothctl.
 This must be done by the audio server as well.
 
+clear
+-----
+
+Clear Endpoint Configuration.
+
+:Usage: **> clear <endpoint> [transport]**
+:Uses: **org.bluez.MediaEndpoint(5)** method **ClearConfiguration**
+:<endpoint>: Path to the remote endpoint to clear
+:[transport]: Path to the transport whose stream to close (optional, all the
+	streams of the endpoint are closed if omitted)
+:Example Release all the streams of a remote endpoint:
+	| **> clear /org/bluez/hci0/dev_00_11_22_33_44_55/pac_sink0**
+:Example Release the stream of a single transport:
+	| **> clear /org/bluez/hci0/dev_00_11_22_33_44_55/pac_sink0 /org/bluez/hci0/dev_00_11_22_33_44_55/pac_sink0/fd0**
+
+Note:
+
+Clearing an endpoint whose codec configuration was cached by the remote, after
+its streams were released, releases them again.
+
 presets
 -------
 
-- 
2.56.0

[PATCH BlueZ v4 5/6] doc/functional-bap: Document clearing a cached configuration

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Describe the test where the initiator clears an endpoint twice, the
second time releasing the ASE whose codec configuration the acceptor
cached.

Assisted-by: Claude:claude-opus-5-5
---
 doc/functional-bap.rst | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/doc/functional-bap.rst b/doc/functional-bap.rst
index fc367e0f9181..eb04e6520aa8 100644
--- a/doc/functional-bap.rst
+++ b/doc/functional-bap.rst
@@ -230,6 +230,30 @@ test_bap_unicast_desync
 	single ASE of a CIS, so a failure of that one can be told apart
 	from a failure of the initiator to enable the ASEs separately.
 
+test_bap_unicast_clear_cached
+-----------------------------
+
+:Setup: As above, with both transports created.
+
+:Steps:
+	1. Initiator: ``endpoint.clear <remote PAC Source endpoint>``.
+	2. Initiator: ``endpoint.clear <remote PAC Source endpoint>`` again.
+
+:Expected:
+	1. ``Configuration cleared``, and the initiator removes the transport
+	   of the Source ASE, which the acceptor moves to Codec Configured,
+	   caching its codec configuration.
+	2. ``Configuration cleared``, and the initiator releases the Source
+	   ASE again from Codec Configured, so the acceptor moves it to Idle
+	   and removes its transport. The Sink ASE transports are left in
+	   ``State: idle``.
+
+:Notes: Releasing an ASE in the Codec Configured state is permitted
+	(ASCS Table 3.2, BAP 5.6.6) and is covered by BAP/UCL/SCC/BV-106-C
+	and BV-107-C. Without it, an initiator could not get rid of the
+	codec configuration an acceptor cached, as it no longer has a
+	transport for it.
+
 test_bap_unicast_duplex_enable_one
 ----------------------------------
 
-- 
2.56.0

[PATCH BlueZ v4 6/6] test: functional: Cover clearing a cached configuration

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

Have the initiator clear its remote PAC Source endpoint twice, and
check that the acceptor removes the transport of the Source ASE once
released again from Codec Configured, leaving the Sink ASE alone.

Assisted-by: Claude:claude-opus-5-5
---
 test/functional/test_bap.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/test/functional/test_bap.py b/test/functional/test_bap.py
index 324304204caf..02f203b68667 100644
--- a/test/functional/test_bap.py
+++ b/test/functional/test_bap.py
@@ -698,6 +698,29 @@ def test_bap_unicast_desync(duplex_hosts):
     expect_all(initiator, [ACQUIRED, f"Transport {to_sink} State: active"])
 
 
+@duplex_host_config
+def test_bap_unicast_clear_cached(duplex_hosts):
+    initiator, acceptor, to_sink, from_source, sink, source = duplex_hosts
+
+    # Releasing the Source ASE removes the transport of the initiator,
+    # while the acceptor may cache the codec configuration of the ASE
+    remote = from_source.rsplit("/", 1)[0]
+    initiator.send(f"endpoint.clear {remote}\n")
+    expect_all(
+        initiator, [rf"DEL[^\]]*\] Transport {from_source}", "Configuration cleared"]
+    )
+
+    # Clearing it again releases the ASE from Codec Configured, so the
+    # acceptor does not keep it configured
+    initiator.send(f"endpoint.clear {remote}\n")
+    expect_all(initiator, ["Configuration cleared"])
+    expect_all(acceptor, [rf"DEL[^\]]*\] Transport {source}"])
+
+    # The other direction is left alone
+    assert show_state(acceptor, sink) == "idle"
+    assert show_state(initiator, to_sink) == "idle"
+
+
 @duplex_host_config
 def test_bap_unicast_duplex_enable_one(duplex_hosts):
     initiator, acceptor, to_sink, from_source, sink, source = duplex_hosts
-- 
2.56.0