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Multicast prototype: EXPERIMENTAL.
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‎docs/ids_and_codes/zap_clusters.md

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@@ -71,6 +71,7 @@ Generally regenerate using one of:
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| 96 | 0x60 | OperationalState |
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| 97 | 0x61 | RvcOperationalState |
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| 98 | 0x62 | ScenesManagement |
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| 100 | 0x64 | Multicast |
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| 113 | 0x71 | HepaFilterMonitoring |
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| 114 | 0x72 | ActivatedCarbonFilterMonitoring |
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| 128 | 0x80 | BooleanStateConfiguration |

‎examples/lighting-app/silabs/data_model/lighting-thread-app.matter

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@@ -2015,6 +2015,46 @@ provisional cluster ScenesManagement = 98 {
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fabric command access(invoke: manage) CopyScene(CopySceneRequest): CopySceneResponse = 64;
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}
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/** The Multicast Cluster. */
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cluster Multicast = 100 {
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revision 1; // NOTE: Default/not specifically set
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bitmap Feature : bitmap32 {
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kCacheAndSync = 0x1;
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}
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fabric_scoped struct MulticastTargetStruct {
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group_id groupId = 1;
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endpoint_no endpoints[] = 2;
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fabric_idx fabricIndex = 254;
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}
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attribute access(write: manage) MulticastTargetStruct targets[] = 0;
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readonly attribute command_id generatedCommandList[] = 65528;
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readonly attribute command_id acceptedCommandList[] = 65529;
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readonly attribute attrib_id attributeList[] = 65531;
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readonly attribute bitmap32 featureMap = 65532;
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readonly attribute int16u clusterRevision = 65533;
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request struct SetTargetRequest {
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group_id groupId = 0;
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endpoint_no endpoints[] = 1;
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octet_string<16> key = 2;
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int32u gracePeriod = 3;
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}
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request struct RemoveTargetRequest {
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group_id groupId = 0;
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endpoint_no endpoints[] = 1;
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int32u gracePeriod = 2;
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}
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/** Set a multicast target. */
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fabric command access(invoke: administer) SetTarget(SetTargetRequest): DefaultSuccess = 0;
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/** Set a multicast target. */
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fabric command access(invoke: administer) RemoveTarget(RemoveTargetRequest): DefaultSuccess = 1;
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}
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/** Attributes and commands for controlling the color properties of a color-capable light. */
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cluster ColorControl = 768 {
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revision 7;
@@ -2591,6 +2631,18 @@ endpoint 0 {
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handle command KeySetReadAllIndices;
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handle command KeySetReadAllIndicesResponse;
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}
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server cluster Multicast {
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callback attribute targets;
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callback attribute generatedCommandList;
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callback attribute acceptedCommandList;
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callback attribute attributeList;
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ram attribute featureMap default = 0;
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ram attribute clusterRevision default = 1;
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handle command SetTarget;
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handle command RemoveTarget;
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}
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}
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endpoint 1 {
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device type ma_extendedcolorlight = 269, version 1;

‎examples/lighting-app/silabs/data_model/lighting-thread-app.zap

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@@ -3135,6 +3135,130 @@
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"reportableChange": 0
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}
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]
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},
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{
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"name": "Multicast",
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"code": 100,
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"mfgCode": null,
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"define": "MULTICAST_CLUSTER",
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"side": "server",
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"enabled": 1,
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"commands": [
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{
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"name": "SetTarget",
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"code": 0,
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"mfgCode": null,
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"source": "client",
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"isIncoming": 1,
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"isEnabled": 1
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},
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{
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"name": "RemoveTarget",
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"code": 1,
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"mfgCode": null,
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"source": "client",
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"isIncoming": 1,
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"isEnabled": 1
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}
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],
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"attributes": [
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{
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"name": "Targets",
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"code": 0,
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"mfgCode": null,
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"side": "server",
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"type": "array",
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"included": 1,
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"storageOption": "External",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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},
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{
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"name": "GeneratedCommandList",
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"code": 65528,
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"mfgCode": null,
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"side": "server",
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"type": "array",
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"included": 1,
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"storageOption": "External",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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},
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{
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"name": "AcceptedCommandList",
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"code": 65529,
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"mfgCode": null,
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"side": "server",
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"type": "array",
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"included": 1,
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"storageOption": "External",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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},
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{
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"name": "AttributeList",
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"code": 65531,
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"mfgCode": null,
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"side": "server",
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"type": "array",
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"included": 1,
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"storageOption": "External",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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},
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{
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"name": "FeatureMap",
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"code": 65532,
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"mfgCode": null,
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"side": "server",
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"type": "bitmap32",
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"included": 1,
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"storageOption": "RAM",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "0",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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},
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{
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"name": "ClusterRevision",
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"code": 65533,
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"mfgCode": null,
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"side": "server",
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"type": "int16u",
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"included": 1,
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"storageOption": "RAM",
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"singleton": 0,
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"bounded": 0,
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"defaultValue": "1",
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"reportable": 1,
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"minInterval": 1,
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"maxInterval": 65534,
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"reportableChange": 0
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}
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]
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}
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]
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},

‎scripts/tools/zap/tests/outputs/lighting-app/app-templates/gen_config.h

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#define MATTER_DM_OPERATIONAL_STATE_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_OPERATIONAL_STATE_RVC_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_SCENES_CLUSTER_SERVER_ENDPOINT_COUNT (1)
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#define MATTER_DM_MULTICAST_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_HEPA_FILTER_MONITORING_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_ACTIVATED_CARBON_FILTER_MONITORING_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_BOOLEAN_STATE_CONFIGURATION_CLUSTER_SERVER_ENDPOINT_COUNT (0)
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#define MATTER_DM_OPERATIONAL_STATE_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_OPERATIONAL_STATE_RVC_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_SCENES_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_MULTICAST_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_HEPA_FILTER_MONITORING_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_ACTIVATED_CARBON_FILTER_MONITORING_CLUSTER_CLIENT_ENDPOINT_COUNT (0)
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#define MATTER_DM_BOOLEAN_STATE_CONFIGURATION_CLUSTER_CLIENT_ENDPOINT_COUNT (0)

‎src/app/clusters/multicast-server/BUILD.gn

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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group("multicast-server") {
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}

‎src/app/clusters/multicast-server/app_config_dependent_sources.gni

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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app_config_dependent_sources = [ "multicast-server.cpp" ]

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