diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 4d529bc29a4d..8c28e8738a06 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -544,6 +544,33 @@ int V4L2CameraProxy::vidioc_querybuf(V4L2CameraFile *file, struct v4l2_buffer *a
 	return 0;
 }
 
+int V4L2CameraProxy::vidioc_prepare_buf(V4L2CameraFile *file, struct v4l2_buffer *arg)
+{
+	LOG(V4L2Compat, Debug) << "Servicing vidioc_prepare_buf, index = "
+			       << arg->index << " fd = " << file->efd();
+
+	if (!hasOwnership(file))
+		return -EBUSY;
+
+	if (arg->index >= bufferCount_)
+		return -EINVAL;
+
+	if (buffers_[arg->index].flags & V4L2_BUF_FLAG_REQUEST_FD ||
+	    buffers_[arg->index].flags & V4L2_BUF_FLAG_PREPARED)
+		return -EINVAL;
+
+	if (buffers_[arg->index].flags & V4L2_BUF_FLAG_QUEUED ||
+	    !validateBufferType(arg->type) ||
+	    !validateMemoryType(arg->memory))
+		return -EINVAL;
+
+	buffers_[arg->index].flags |= V4L2_BUF_FLAG_PREPARED;
+
+	arg->flags = buffers_[arg->index].flags;
+
+	return 0;
+}
+
 int V4L2CameraProxy::vidioc_qbuf(V4L2CameraFile *file, struct v4l2_buffer *arg)
 {
 	LOG(V4L2Compat, Debug) << "Servicing vidioc_qbuf, index = "
@@ -709,6 +736,7 @@ const std::set<unsigned long> V4L2CameraProxy::supportedIoctls_ = {
 	VIDIOC_S_INPUT,
 	VIDIOC_REQBUFS,
 	VIDIOC_QUERYBUF,
+	VIDIOC_PREPARE_BUF,
 	VIDIOC_QBUF,
 	VIDIOC_DQBUF,
 	VIDIOC_EXPBUF,
diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h
index 14e027c3e7d1..6baba94262a9 100644
--- a/src/v4l2/v4l2_camera_proxy.h
+++ b/src/v4l2/v4l2_camera_proxy.h
@@ -57,6 +57,7 @@ private:
 	int vidioc_s_input(V4L2CameraFile *file, int *arg);
 	int vidioc_reqbufs(V4L2CameraFile *file, struct v4l2_requestbuffers *arg);
 	int vidioc_querybuf(V4L2CameraFile *file, struct v4l2_buffer *arg);
+	int vidioc_prepare_buf(V4L2CameraFile *file, struct v4l2_buffer *arg);
 	int vidioc_qbuf(V4L2CameraFile *file, struct v4l2_buffer *arg);
 	int vidioc_dqbuf(V4L2CameraFile *file, struct v4l2_buffer *arg,
 			 libcamera::Mutex *lock) LIBCAMERA_TSA_REQUIRES(*lock);