Bluetooth: Host: Introduce new GAP Device Name APIs

doc/releases/release-notes-4.2.rst

@@ -99,6 +99,15 @@ Deprecated APIs and options
 * ``xiao_esp32c6`` board target has been deprecated and renamed to
   ``xiao_esp32c6/esp32c6/hpcore``.
 
+* The :c:func:`bt_get_name` and :c:func:`bt_set_name` are deprecated in favor of
+  the new :c:func:`bt_gap_get_device_name` and :c:func:`bt_gap_set_device_name`.
+  :kconfig:option:`CONFIG_BT_DEVICE_NAME`,
+  :kconfig:option:`CONFIG_BT_DEVICE_NAME_DYNAMIC` and
+  :kconfig:option:`CONFIG_BT_DEVICE_NAME_MAX` are deprecated in favor of
+  :kconfig:option:`CONFIG_BT_GAP_DEVICE_NAME`,
+  :kconfig:option:`CONFIG_BT_GAP_DEVICE_NAME_DYNAMIC` and
+  :kconfig:option:`CONFIG_BT_GAP_DEVICE_NAME_DYNAMIC_MAX`.
+
 New APIs and options
 ====================
 
@@ -144,6 +153,8 @@ New APIs and options
       :c:func:`bt_br_unpair`.
     * Remove query of the classic bonding information from :c:func:`bt_foreach_bond`, and add
       :c:func:`bt_br_foreach_bond`.
+    * :c:func:`bt_gap_get_device_name`
+    * :c:func:`bt_gap_set_device_name`
 
 * Display
 

include/zephyr/bluetooth/bluetooth.h

@@ -359,7 +359,7 @@ bool bt_is_ready(void);
  *
  * @return Zero on success or (negative) error code otherwise.
  */
-int bt_set_name(const char *name);
+__deprecated int bt_set_name(const char *name);
 
 /**
  * @brief Get Bluetooth Device Name
@@ -368,7 +368,7 @@ int bt_set_name(const char *name);
  *
  * @return Bluetooth Device Name
  */
-const char *bt_get_name(void);
+__deprecated const char *bt_get_name(void);
 
 /**
  * @brief Get local Bluetooth appearance

include/zephyr/bluetooth/gap/device_name.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_INCLUDE_BLUETOOTH_GAP_DEVICE_NAME_H_
+#define ZEPHYR_INCLUDE_BLUETOOTH_GAP_DEVICE_NAME_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * @brief Maximum size of a Bluetooth GAP Device Name according to Bluetooth
+ * specification. See Core Specification vol. 3, part C, 12.1.
+ *
+ * @note It is recommended to use that value when reading the Bluetooth GAP
+ * Device Name from a peer.
+ */
+#define BT_GAP_DEVICE_NAME_MAX_SIZE 248
+
+/**
+ * @brief Copy over Bluetooth GAP Device Name
+ *
+ * @note If buf is equal to NULL, the function will do nothing but return the
+ * size of the current Bluetooth GAP Device Name.
+ *
+ * @param buf Buffer where the Bluetooth GAP Device Name will be copied
+ * @param size Size of @p buf
+ *
+ * @retval >=0 Size of the GAP Device Name
+ * @retval -ENOMEM Device name is bigger than @p buf and thus cannot be copied
+ * in it
+ */
+int bt_gap_get_device_name(uint8_t *buf, size_t size);
+
+/**
+ * @brief Set the Bluetooth GAP Device Name
+ *
+ * If the Bluetooth settings are enabled (@kconfig{CONFIG_BT_SETTINGS}) and the
+ * storing the name fail, no update will be made. The previous name will be
+ * kept.
+ *
+ * @note If the dynamic Bluetooth GAP Device Name
+ * (@kconfig{CONFIG_BT_GAP_DEVICE_NAME_DYNAMIC}) is not enabled, the function
+ * will do nothing an always return 0.
+ *
+ * @warning This API is considered thread safe only if no other APIs tries to
+ * write to the settings key used to store the GAP Device Name.
+ *
+ * @param buf Buffer containing the new Bluetooth GAP device name
+ * @param size Size of @p buf
+ *
+ * @retval 0 Success
+ * @retval -ENOBUFS @p size is bigger than the maximum allowed size
+ * @retval -EIO Error while trying to save the device name to the settings
+ * backend
+ */
+int bt_gap_set_device_name(const uint8_t *buf, size_t size);
+
+#endif /* ZEPHYR_INCLUDE_BLUETOOTH_GAP_DEVICE_NAME_H_ */

samples/bluetooth/bap_broadcast_sink/README.rst

@@ -17,7 +17,7 @@ This sample can be found under
 Check the :zephyr:code-sample-category:`bluetooth` samples for general information.
 
 Use :kconfig:option:`CONFIG_TARGET_BROADCAST_NAME` Kconfig to specify the name
-(:kconfig:option:`CONFIG_BT_DEVICE_NAME`) of a broadcast source to listen to. With default value
+(:kconfig:option:`CONFIG_BT_GAP_DEVICE_NAME`) of a broadcast source to listen to. With default value
 (empty string), sink device will listen to all available broadcast sources.
 
 Requirements

samples/bluetooth/bap_broadcast_sink/prj.conf

@@ -30,4 +30,4 @@ CONFIG_BT_AUDIO_CODEC_CFG_MAX_DATA_SIZE=64
 CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE=64
 CONFIG_BT_AUDIO_CODEC_CAP_MAX_DATA_SIZE=64
 
-CONFIG_BT_DEVICE_NAME="Broadcast Audio Sink"
+CONFIG_BT_GAP_DEVICE_NAME="Broadcast Audio Sink"

samples/bluetooth/bap_broadcast_sink/src/main.c

@@ -958,8 +958,8 @@ static int start_adv(void)
 			      BT_UUID_16_ENCODE(BT_UUID_BASS_VAL),
 			      BT_UUID_16_ENCODE(BT_UUID_PACS_VAL)),
 		BT_DATA_BYTES(BT_DATA_SVC_DATA16, BT_UUID_16_ENCODE(BT_UUID_BASS_VAL)),
-		BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME,
-			sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+		BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+			sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 	};
 	int err;
 

samples/bluetooth/bap_broadcast_source/prj.conf

@@ -17,5 +17,5 @@ CONFIG_BT_BAP_BROADCAST_SRC_SUBGROUP_COUNT=1
 CONFIG_BT_ISO_TX_BUF_COUNT=6
 CONFIG_BT_ISO_TX_MTU=60
 
-CONFIG_BT_DEVICE_NAME="Broadcast Audio Source"
+CONFIG_BT_GAP_DEVICE_NAME="Broadcast Audio Source"
 CONFIG_BROADCAST_ID=0x123456

samples/bluetooth/bap_broadcast_source/src/main.c

@@ -600,9 +600,10 @@ int main(void)
 		ext_ad[0].type = BT_DATA_SVC_DATA16;
 		ext_ad[0].data_len = ad_buf.len;
 		ext_ad[0].data = ad_buf.data;
-		ext_ad[1] = (struct bt_data)BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME,
-						    sizeof(CONFIG_BT_DEVICE_NAME) - 1);
-		err = bt_le_ext_adv_set_data(adv, ext_ad, 2, NULL, 0);
+		ext_ad[1] = (struct bt_data)BT_DATA(
+		    BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		    sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1);
+                err = bt_le_ext_adv_set_data(adv, ext_ad, 2, NULL, 0);
 		if (err != 0) {
 			printk("Failed to set extended advertising data: %d\n", err);
 			return 0;

samples/bluetooth/bap_unicast_server/prj.conf

@@ -27,4 +27,4 @@ CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE=10
 CONFIG_BT_ATT_PREPARE_COUNT=1
 
 CONFIG_BT_EXT_ADV=y
-CONFIG_BT_DEVICE_NAME="Unicast Audio Server"
+CONFIG_BT_GAP_DEVICE_NAME="Unicast Audio Server"

samples/bluetooth/bap_unicast_server/src/main.c

@@ -78,10 +78,12 @@ static uint8_t unicast_server_addata[] = {
 
 /* TODO: Expand with BAP data */
 static const struct bt_data ad[] = {
-	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
-	BT_DATA_BYTES(BT_DATA_UUID16_ALL, BT_UUID_16_ENCODE(BT_UUID_ASCS_VAL)),
-	BT_DATA(BT_DATA_SVC_DATA16, unicast_server_addata, ARRAY_SIZE(unicast_server_addata)),
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+    BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
+    BT_DATA_BYTES(BT_DATA_UUID16_ALL, BT_UUID_16_ENCODE(BT_UUID_ASCS_VAL)),
+    BT_DATA(BT_DATA_SVC_DATA16, unicast_server_addata,
+            ARRAY_SIZE(unicast_server_addata)),
+    BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+            sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 };
 
 #define AUDIO_DATA_TIMEOUT_US 1000000UL /* Send data every 1 second */

samples/bluetooth/beacon/prj-coex.conf

@@ -1,6 +1,6 @@
 CONFIG_BT=y
 CONFIG_LOG=y
-CONFIG_BT_DEVICE_NAME="Test beacon"
+CONFIG_BT_GAP_DEVICE_NAME="Test beacon"
 
 CONFIG_BT_LL_SW_SPLIT=y
 CONFIG_BT_CTLR_COEX_TICKER=y

samples/bluetooth/beacon/prj.conf

@@ -1,3 +1,3 @@
 CONFIG_BT=y
 CONFIG_LOG=y
-CONFIG_BT_DEVICE_NAME="Test beacon"
+CONFIG_BT_GAP_DEVICE_NAME="Test beacon"

samples/bluetooth/beacon/src/main.c

@@ -14,7 +14,7 @@
 #include <zephyr/bluetooth/bluetooth.h>
 #include <zephyr/bluetooth/hci.h>
 
-#define DEVICE_NAME CONFIG_BT_DEVICE_NAME
+#define DEVICE_NAME CONFIG_BT_GAP_DEVICE_NAME
 #define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
 
 /*

samples/bluetooth/broadcaster_multiple/prj.conf

@@ -2,7 +2,7 @@ CONFIG_BT=y
 CONFIG_BT_BROADCASTER=y
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_EXT_ADV_MAX_ADV_SET=2
-CONFIG_BT_DEVICE_NAME="Broadcaster Multiple"
+CONFIG_BT_GAP_DEVICE_NAME="Broadcaster Multiple"
 
 CONFIG_LOG=y
 

samples/bluetooth/broadcaster_multiple/src/broadcaster_multiple.c

@@ -27,7 +27,7 @@
 #define BT_AD_DATA_FORMAT_LEN_MAX 255U
 
 /* Device name length, size minus one null character */
-#define BT_DEVICE_NAME_LEN (sizeof(CONFIG_BT_DEVICE_NAME) - 1U)
+#define BT_DEVICE_NAME_LEN (sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1U)
 
 /* Device name length in AD data format, 2 bytes for length and type overhead */
 #define BT_DEVICE_NAME_AD_DATA_LEN (BT_AD_DATA_FORMAT_LEN_SIZE + \
@@ -55,11 +55,12 @@
 static uint8_t mfg_data[BT_MFG_DATA_LEN] = { 0xFF, 0xFF, };
 
 static const struct bt_data ad[] = {
-	BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, sizeof(mfg_data)),
+    BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, sizeof(mfg_data)),
 #if CONFIG_BT_CTLR_ADV_DATA_LEN_MAX > 255
-	BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, sizeof(mfg_data)),
+    BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, sizeof(mfg_data)),
 #endif
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+    BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+            sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 };
 
 static struct bt_le_ext_adv *adv[CONFIG_BT_EXT_ADV_MAX_ADV_SET];

samples/bluetooth/bthome_sensor_template/prj.conf

@@ -5,4 +5,4 @@
 #
 CONFIG_BT=y
 CONFIG_BT_PERIPHERAL=y
-CONFIG_BT_DEVICE_NAME="BTHome template"
+CONFIG_BT_GAP_DEVICE_NAME="BTHome template"

samples/bluetooth/bthome_sensor_template/src/main.c

@@ -29,10 +29,10 @@ static uint8_t service_data[SERVICE_DATA_LEN] = {
 };
 
 static struct bt_data ad[] = {
-	BT_DATA_BYTES(BT_DATA_FLAGS, BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR),
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
-	BT_DATA(BT_DATA_SVC_DATA16, service_data, ARRAY_SIZE(service_data))
-};
+    BT_DATA_BYTES(BT_DATA_FLAGS, BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR),
+    BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+            sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
+    BT_DATA(BT_DATA_SVC_DATA16, service_data, ARRAY_SIZE(service_data))};
 
 static void bt_ready(int err)
 {

samples/bluetooth/cap_acceptor/prj.conf

@@ -10,7 +10,7 @@ CONFIG_BT_PERIPHERAL_PREF_TIMEOUT=400
 CONFIG_BT_GATT_DYNAMIC_DB=y
 CONFIG_BT_GATT_CLIENT=y
 CONFIG_BT_EXT_ADV=y
-CONFIG_BT_DEVICE_NAME="CAP Acceptor"
+CONFIG_BT_GAP_DEVICE_NAME="CAP Acceptor"
 CONFIG_BT_AUDIO=y
 CONFIG_BT_SMP=y
 CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

samples/bluetooth/cap_acceptor/src/main.c

@@ -43,7 +43,8 @@ LOG_MODULE_REGISTER(cap_acceptor, LOG_LEVEL_INF);
 
 static const struct bt_data ad[] = {
 	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 	BT_DATA_BYTES(BT_DATA_UUID16_SOME,
 		      BT_UUID_16_ENCODE(BT_UUID_ASCS_VAL),
 		      BT_UUID_16_ENCODE(BT_UUID_CAS_VAL)),

samples/bluetooth/cap_initiator/prj.conf

@@ -5,7 +5,7 @@ CONFIG_BT=y
 CONFIG_BT_SMP=y
 CONFIG_BT_AUDIO=y
 CONFIG_BT_EXT_ADV=y
-CONFIG_BT_DEVICE_NAME="CAP Initiator"
+CONFIG_BT_GAP_DEVICE_NAME="CAP Initiator"
 
 # CAP support
 CONFIG_BT_CAP_INITIATOR=y

samples/bluetooth/ccp_call_control_client/prj.conf

@@ -5,7 +5,7 @@ CONFIG_BT_GATT_CLIENT=y
 CONFIG_BT_GATT_AUTO_DISCOVER_CCC=y
 CONFIG_BT_AUDIO=y
 CONFIG_BT_EXT_ADV=y
-CONFIG_BT_DEVICE_NAME="CCP Call Control Client"
+CONFIG_BT_GAP_DEVICE_NAME="CCP Call Control Client"
 
 CONFIG_BT_SMP=y
 CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

samples/bluetooth/ccp_call_control_server/prj.conf

@@ -5,7 +5,7 @@ CONFIG_BT_AUDIO=y
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_SMP=y
 CONFIG_BT_GATT_DYNAMIC_DB=y
-CONFIG_BT_DEVICE_NAME="CCP Call Control Server"
+CONFIG_BT_GAP_DEVICE_NAME="CCP Call Control Server"
 
 CONFIG_BT_SMP=y
 CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

samples/bluetooth/ccp_call_control_server/src/main.c

@@ -27,7 +27,8 @@ LOG_MODULE_REGISTER(ccp_call_control_server, CONFIG_LOG_DEFAULT_LEVEL);
 #define SEM_TIMEOUT K_SECONDS(5)
 
 static const struct bt_data ad[] = {
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
 	BT_DATA_BYTES(BT_DATA_UUID16_SOME, BT_UUID_16_ENCODE(BT_UUID_GTBS_VAL)),
 	BT_DATA_BYTES(BT_DATA_SVC_DATA16, BT_UUID_16_ENCODE(BT_UUID_GTBS_VAL)),

samples/bluetooth/central_past/prj.conf

@@ -3,5 +3,5 @@ CONFIG_BT_CENTRAL=y
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_PER_ADV_SYNC=y
 CONFIG_LOG=y
-CONFIG_BT_DEVICE_NAME="Test Central Periodic Advertising Sync Transfer"
+CONFIG_BT_GAP_DEVICE_NAME="Test Central Periodic Advertising Sync Transfer"
 CONFIG_BT_PER_ADV_SYNC_TRANSFER_SENDER=y

samples/bluetooth/direct_adv/prj.conf

@@ -9,7 +9,7 @@ CONFIG_BT_PERIPHERAL=y
 CONFIG_BT_DIS=y
 CONFIG_BT_ATT_PREPARE_COUNT=1
 CONFIG_BT_PRIVACY=y
-CONFIG_BT_DEVICE_NAME="Direct Adv"
+CONFIG_BT_GAP_DEVICE_NAME="Direct Adv"
 CONFIG_BT_DEVICE_APPEARANCE=833
 
 CONFIG_BT_KEYS_OVERWRITE_OLDEST=y

samples/bluetooth/direct_adv/src/main.c

@@ -76,7 +76,8 @@ BT_GATT_SERVICE_DEFINE(primary_service,
 static const struct bt_data ad[] = {
 	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
 	BT_DATA_BYTES(BT_DATA_UUID128_ALL, BT_UUID_CUSTOM_SERVICE_VAL),
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 };
 
 static void connected(struct bt_conn *conn, uint8_t err)

samples/bluetooth/direction_finding_central/prj.conf

@@ -6,7 +6,7 @@
 
 CONFIG_BT=y
 CONFIG_LOG=y
-CONFIG_BT_DEVICE_NAME="Direction Finding Central"
+CONFIG_BT_GAP_DEVICE_NAME="Direction Finding Central"
 
 CONFIG_BT_CENTRAL=y
 CONFIG_BT_SMP=y

samples/bluetooth/direction_finding_connectionless_rx/prj.conf

@@ -1,5 +1,5 @@
 CONFIG_BT=y
-CONFIG_BT_DEVICE_NAME="DF Connectionless Locator App"
+CONFIG_BT_GAP_DEVICE_NAME="DF Connectionless Locator App"
 
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_PER_ADV_SYNC=y

samples/bluetooth/direction_finding_connectionless_rx/src/main.c

@@ -18,7 +18,7 @@
 #include <zephyr/bluetooth/hci.h>
 #include <zephyr/bluetooth/hci_vs.h>
 
-#define DEVICE_NAME     CONFIG_BT_DEVICE_NAME
+#define DEVICE_NAME     CONFIG_BT_GAP_DEVICE_NAME
 #define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
 #define NAME_LEN        30
 #define PEER_NAME_LEN_MAX 30

samples/bluetooth/direction_finding_connectionless_tx/prj.conf

@@ -1,5 +1,5 @@
 CONFIG_BT=y
-CONFIG_BT_DEVICE_NAME="DF Connectionless Beacon App"
+CONFIG_BT_GAP_DEVICE_NAME="DF Connectionless Beacon App"
 
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_PER_ADV=y

samples/bluetooth/direction_finding_connectionless_tx/src/main.c

@@ -65,7 +65,8 @@ struct bt_df_adv_cte_tx_param cte_params = { .cte_len = CTE_LEN,
 };
 
 static const struct bt_data ad[] = {
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 };
 
 static void adv_sent_cb(struct bt_le_ext_adv *adv,

samples/bluetooth/direction_finding_peripheral/prj.conf

@@ -6,7 +6,7 @@
 
 CONFIG_BT=y
 CONFIG_LOG=y
-CONFIG_BT_DEVICE_NAME="DF Conn App"
+CONFIG_BT_GAP_DEVICE_NAME="DF Conn App"
 CONFIG_BT_SMP=y
 
 CONFIG_BT_PERIPHERAL=y

samples/bluetooth/direction_finding_peripheral/src/main.c

@@ -26,7 +26,8 @@
 static const struct bt_data ad[] = {
 	BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
 	BT_DATA_BYTES(BT_DATA_LE_SUPPORTED_FEATURES, BT_LE_SUPP_FEAT_24_ENCODE(DF_FEAT_ENABLED)),
-	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
+	BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_GAP_DEVICE_NAME,
+		sizeof(CONFIG_BT_GAP_DEVICE_NAME) - 1),
 };
 
 /* Latency set to zero, to enforce PDU exchange every connection event */