Add definition of DRM_VBLANK_SECONDARY.

diff --git a/libdrm/xf86drm.h b/libdrm/xf86drm.h
index 9e71eb6..cda570d 100644 (file)
--- a/libdrm/xf86drm.h
+++ b/libdrm/xf86drm.h
@@ -252,6 +252,7 @@ typedef struct _drmTextureRegion {
 typedef enum {
     DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
     DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
+    DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
     DRM_VBLANK_SIGNAL   = 0x40000000   /* Send signal instead of blocking */
 } drmVBlankSeqType;