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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2012-03-09 10:56:35 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-03-09 10:56:35 -0800
commit05b7b842fa1798c4775997602d42f3d6373e7ef3 (patch)
treea0942796d362b68c893ec1d92c106a6f04010545 /include/linux/input.h
parentb675b3667f6729dcd1036a2a129b35445947f905 (diff)
parent7491f3dffd99fadf1239011c0ab5346925618dae (diff)
Merge branch 'for-next' of github.com:rydberg/linux into next
Diffstat (limited to 'include/linux/input.h')
-rw-r--r--include/linux/input.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h
index 177261ea6f52..a81671453575 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -114,6 +114,31 @@ struct input_keymap_entry {
#define EVIOCGUNIQ(len) _IOC(_IOC_READ, 'E', 0x08, len) /* get unique identifier */
#define EVIOCGPROP(len) _IOC(_IOC_READ, 'E', 0x09, len) /* get device properties */
+/**
+ * EVIOCGMTSLOTS(len) - get MT slot values
+ *
+ * The ioctl buffer argument should be binary equivalent to
+ *
+ * struct input_mt_request_layout {
+ * __u32 code;
+ * __s32 values[num_slots];
+ * };
+ *
+ * where num_slots is the (arbitrary) number of MT slots to extract.
+ *
+ * The ioctl size argument (len) is the size of the buffer, which
+ * should satisfy len = (num_slots + 1) * sizeof(__s32). If len is
+ * too small to fit all available slots, the first num_slots are
+ * returned.
+ *
+ * Before the call, code is set to the wanted ABS_MT event type. On
+ * return, values[] is filled with the slot values for the specified
+ * ABS_MT code.
+ *
+ * If the request code is not an ABS_MT value, -EINVAL is returned.
+ */
+#define EVIOCGMTSLOTS(len) _IOC(_IOC_READ, 'E', 0x0a, len)
+
#define EVIOCGKEY(len) _IOC(_IOC_READ, 'E', 0x18, len) /* get global key state */
#define EVIOCGLED(len) _IOC(_IOC_READ, 'E', 0x19, len) /* get all LEDs */
#define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */