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authorPeter Hutterer <peter.hutterer@redhat.com>2008-10-30 16:55:29 +1030
committerPeter Hutterer <peter.hutterer@redhat.com>2008-10-30 16:55:29 +1030
commit33eb36f26663c09c873acede1b35e91ef4c64479 (patch)
tree84532529b28c3a3bffc3c3528040145e43653c6d /include
parentAdd test/ directory for uinput-based test devices. (diff)
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Add support for run-time calibration.
Some devices require run-time axis calibration. We can't change the min/max ranges once we've initialised the valuator structs though, so in-driver run-time calibration is required. If the property is set, the driver scales from the calibrated range to the values reported to the X server (which then may scale to screen coordinates). If the property is not set (i.e. zero items) no scaling is performed.
Diffstat (limited to 'include')
-rw-r--r--include/evdev-properties.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/evdev-properties.h b/include/evdev-properties.h
index 89f25f1..be4307b 100644
--- a/include/evdev-properties.h
+++ b/include/evdev-properties.h
@@ -58,4 +58,8 @@
/* CARD8 */
#define EVDEV_PROP_REOPEN "Evdev Reopen Attempts"
+/* Run-time calibration */
+/* CARD32, 4 values [minx, maxx, miny, maxy], or no values for unset */
+#define EVDEV_PROP_CALIBRATION "Evdev Axis Calibration"
+
#endif