Add support for kernel MT slot state retrieval

From kernel 3.4, extraction of the MT slot state is supported
via the EVIOGMTSLOTS ioctl. This patch initializes the slots
using that information.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/mtdev.h b/include/mtdev.h
index ba682c5..33ea29c 100644
--- a/include/mtdev.h
+++ b/include/mtdev.h
@@ -68,6 +68,11 @@ extern "C" {
 #define ABS_MT_DISTANCE         0x3b    /* Contact hover distance */
 #endif
 
+/* includes available in 3.4 */
+#ifndef EVIOCGMTSLOTS
+#define EVIOCGMTSLOTS(len)      _IOC(_IOC_READ, 'E', 0x0a, len)
+#endif
+
 #define MT_ID_NULL      (-1)
 #define MT_ID_MIN       0
 #define MT_ID_MAX       65535