Support XI 2.1 XIScrollClass

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 38 insertions, 1 deletions

diff --git a/man/XIQueryDevice.txt b/man/XIQueryDevice.txt
index 09da8d6..6b5a622 100644
--- a/man/XIQueryDevice.txt
+++ b/man/XIQueryDevice.txt
@@ -100,7 +100,7 @@ DESCRIPTION
 
    The type field specifies the type of the input class.
    Currently, the following types are defined:
-       XIKeyClass, XIButtonClass, XIValuatorClass
+       XIKeyClass, XIButtonClass, XIValuatorClass, XIScrollClass
 
    In the future, additional types may be added. Clients are
    required to ignore unknown input classes.
@@ -194,6 +194,43 @@ DESCRIPTION
    XIModeAbsolute this axis sends absolute coordinates. If the
    mode is XIModeRelative, this device sends relative coordinates.
 
+               typedef struct
+               {
+                   int         type;
+                   int         sourceid;
+                   int         number;
+                   int         scroll_type;
+                   double      increment;
+                   int         flags;
+               } XIScrollClassInfo;
+
+   This class describes scrolling capability on a valuator. For
+   each XIScrollClassInfo, an XIValuatorClassInfo with the same
+   number is present on the device.
+
+   The number field specifies the valuator number on the physical
+   device that this scroll information applies to. See the
+   respective XIValuatorClassInfo for detailed information on this
+   valuator.
+
+   The scroll_type field specifies the type of scrolling, either
+   XIScrollTypeVertical or XIScrollTypeHorizontal.
+
+   The increment specifies the value change considered one unit of
+   scrolling down.
+
+   The flags field specifies flags that apply to this scrolling
+   information:
+
+   If XIScrollFlagNoEmulation is set, the server will not
+   emulate legacy button events for valuator changes on this
+   valuator.
+
+   If XIScrollFlagPreferred is set, this axis is the
+   preferred axis for this scroll type and will be used for
+   the emulation of XI_Motion events when the driver submits
+   legacy scroll button events.
+
    XIQueryDevice can generate a BadDevice error.
 
    XIFreeDeviceInfo frees the information returned by