diff --git a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
index 7e113aa..6f86bee 100644
--- a/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
+++ b/stimBuffApis/livoxGen1/pcloudStimulusProducer.cpp
@@ -19,6 +19,16 @@ extern const SmoCallbacks* smoHooksPtr;
 static SpMcRingBuffer::InputEngineConstraints openClInputConstraints(
 	static_cast<size_t>(sysconf(_SC_PAGE_SIZE)), sizeof(void *));
 
+static StagingBuffer::IOEngineConstraints openClIntensityInputConstraints(
+	// slotStartAlignmentByteVal (page alignment)
+	sizeof(float),
+	// slotPadToNBytes (intensity value size)
+	sizeof(float),
+	// frameStartAlignmentByteVal (page alignment)
+	static_cast<size_t>(sysconf(_SC_PAGE_SIZE)),
+	// framePadToNBytes (pointer size)
+	sizeof(void *));
+
 PcloudStimulusProducer::PcloudStimulusProducer(
 	const std::shared_ptr<device::DeviceAttachmentSpec> &deviceAttachmentSpec,
 	std::shared_ptr<livoxProto1::Device> &device,
@@ -183,7 +193,8 @@ PcloudStimulusProducer::getOrCreateAttachedStimulusBuffer(
 	else if (qualeIfaceApi == "pcloudIntensity")
 	{
 		auto intensityBuffer = std::make_shared<PcloudIntensityStimulusBuffer>(
-			*this, deviceAttachmentSpec, histbuffMs, openClInputConstraints);
+			*this, deviceAttachmentSpec, histbuffMs,
+			openClInputConstraints);
 
 		intensityStimulusBuffer = intensityBuffer;
 		attachedStimulusBuffers.push_back(intensityBuffer);