1 files changed, 5 insertions, 0 deletions

diff --git a/include/mtdev.h b/include/mtdev.h
index df74e95..ba682c5 100644
--- a/include/mtdev.h
+++ b/include/mtdev.h
@@ -63,6 +63,11 @@ extern "C" {
 #define ABS_MT_SLOT             0x2f    /* MT slot being modified */
 #endif
 
+/* includes available in 2.6.38 */
+#ifndef ABS_MT_DISTANCE
+#define ABS_MT_DISTANCE         0x3b    /* Contact hover distance */
+#endif
+
 #define MT_ID_NULL      (-1)
 #define MT_ID_MIN       0
 #define MT_ID_MAX       65535