diff --git a/core-symbols.txt b/core-symbols.txt
index 1ff4ecaa..410054b3 100644
--- a/core-symbols.txt
+++ b/core-symbols.txt
@@ -83,6 +83,7 @@ drmHashInsert
 drmHashLookup
 drmHashNext
 drmIoctl
+drmIsKMS
 drmIsMaster
 drmMalloc
 drmMap
diff --git a/xf86drmMode.c b/xf86drmMode.c
index 3d6bdfd6..c3920b91 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -146,6 +146,16 @@ drm_public void drmModeFreeEncoder(drmModeEncoderPtr ptr)
  * ModeSetting functions.
  */
 
+drm_public int drmIsKMS(int fd)
+{
+	struct drm_mode_card_res res = {0};
+
+	if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res) != 0)
+		return 0;
+
+	return res.count_crtcs > 0 && res.count_connectors > 0 && res.count_encoders > 0;
+}
+
 drm_public drmModeResPtr drmModeGetResources(int fd)
 {
 	struct drm_mode_card_res res, counts;
diff --git a/xf86drmMode.h b/xf86drmMode.h
index baf3d5dc..72696782 100644
--- a/xf86drmMode.h
+++ b/xf86drmMode.h
@@ -259,6 +259,13 @@ extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );
 extern void drmModeFreePlane( drmModePlanePtr ptr );
 extern void drmModeFreePlaneResources(drmModePlaneResPtr ptr);
 
+/**
+ * Check whether the DRM node supports Kernel Mode-Setting.
+ *
+ * Returns 1 if suitable for KMS, 0 otherwise.
+ */
+extern int drmIsKMS(int fd);
+
 /**
  * Retrieves all of the resources associated with a card.
  */