summaryrefslogtreecommitdiff
path: root/man/synaptics.man
blob: 3fdabbf4fbd24b6e75c552c152795bbf4d4ac534 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
.\" shorthand for double quote that works everywhere.
.ds q \N'34'
.TH SYNAPTICS __drivermansuffix__ __vendorversion__
.SH NAME
synaptics \- touchpad input driver
.SH SYNOPSIS
.nf
.B "Section \*qInputDevice\*q"
.BI "  Identifier \*q" devname \*q
.B  "  Driver \*qsynaptics\*q"
.BI "  Option \*qDevice\*q   \*q" devpath \*q
.BI "  Option \*qPath\*q     \*q" path \*q
\ \ ...
.B EndSection
.fi
.SH DESCRIPTION
.B synaptics
is an __xservername__ input driver for touchpads.
Even though touchpads can be handled by the normal evdev or mouse drivers,
this driver allows more advanced features of the
touchpad to become available. Some benefits would be:
.IP \(bu 4
Movement with adjustable, non-linear acceleration and speed.
.IP \(bu 4
Button events through short touching of the touchpad.
.IP \(bu 4
Double-Button events through double short touching of the touchpad.
.IP \(bu 4
Dragging through short touching and holding down the finger on the
touchpad (tap-and-drag gesture).
.IP \(bu 4
Middle and right button events on the upper and lower corner of the
touchpad.
.IP \(bu 4
Vertical scrolling (button four and five events) through moving the
finger on the right side of the touchpad.
.IP \(bu 4
The up/down button sends button four/five events.
.IP \(bu 4
Horizontal scrolling (button six and seven events) through moving the
finger on the lower side of the touchpad.
.IP \(bu 4
The multi-buttons send button four/five events for vertical scrolling
and button six/seven events for horizontal scrolling.
.IP \(bu 4
Adjustable finger detection.
.IP \(bu 4
Multifinger taps: two finger for right button and three finger for
middle button events.
.
(Needs hardware support.
.
Not all models implement this feature.)
.IP \(bu 4
Pressure dependent motion speed.
.IP \(bu 4
Run-time configuration using shared memory. This means you can change
parameter settings without restarting the X server.
.LP
Note that depending on the touchpad firmware, some of these features
might be available even without using the synaptics driver. Note also
that some functions are not available on all touchpad models, because
they need support from the touchpad hardware/firmware. (Multifinger
taps for example.)
.PP
The name "synaptics" is historical and the driver still provides the
synaptics protocol parsing code. Under Linux however, the hardware-specifics
are handled by the kernel and this driver will work for any touchpad that
has a working kernel driver.

.SH CONFIGURATION OPTIONS
Please refer to __xconfigfile__(__filemansuffix__) for general configuration
details and for options that can be used with all input drivers.  This
section only covers configuration details specific to this driver.
.PP
The following driver
.B Options
are supported:
.TP 7
.BI "Option \*qDevice\*q \*q" string \*q
This option specifies the device file in your \*q/dev\*q directory which will
be used to access the physical device. Normally you should use something like
\*q/dev/input/eventX\*q, where X is some integer.
.TP 7
.BI "Option \*qProtocol\*q \*q" string \*q
Specifies which kernel driver will be used by this driver. This is the list of
supported drivers and their default use scenarios.
.TS
l l.
auto-dev	automatic, default (recommend)
event	Linux 2.6 kernel events
psaux	raw device access (Linux 2.4)
psm	FreeBSD psm driver
.TE
.TP 7
.BI "Option \*qSHMConfig\*q \*q" boolean \*q
Switch on/off shared memory for run-time debugging. This option does not
have an effect on run-time configuration anymore and is only useful for
hardware event debugging.
.TP 7
.BI "Option \*qLeftEdge\*q \*q" integer \*q
X coordinate for left edge. Property: "Synaptics Edges"
.TP 7
.BI "Option \*qRightEdge\*q \*q" integer \*q
X coordinate for right edge. Property: "Synaptics Edges"
.TP 7
.BI "Option \*qTopEdge\*q \*q" integer \*q
Y coordinate for top edge. Property: "Synaptics Edges"
.TP 7
.BI "Option \*qBottomEdge\*q \*q" integer \*q
Y coordinate for bottom edge. Property: "Synaptics Edges"
.TP 7
.BI "Option \*qFingerLow\*q \*q" integer \*q
When finger pressure drops below this value, the driver counts it as a
release. Property: "Synaptics Finger"
.TP 7
.BI "Option \*qFingerHigh\*q \*q" integer \*q
When finger pressure goes above this value, the driver counts it as a
touch. Property: "Synaptics Finger"
.TP 7
.BI "Option \*qFingerPress\*q \*q" integer \*q
When finger pressure goes above this value, the driver counts it as a
press.
.
Currently a press is equivalent to putting the touchpad in trackstick
emulation mode. Property: "Synaptics Finger"
.TP 7
.BI "Option \*qMaxTapTime\*q \*q" integer \*q
Maximum time (in milliseconds) for detecting a tap. Property: "Synaptics Tap
Durations"
.TP 7
.BI "Option \*qMaxTapMove\*q \*q" integer \*q
Maximum movement of the finger for detecting a tap. Property: "Synaptics Tap
Move"
.TP 7
.BI "Option \*qMaxDoubleTapTime\*q \*q" integer \*q
Maximum time (in milliseconds) for detecting a double tap. Property:
"Synaptics Tap Durations"
.TP 7
.BI "Option \*qClickTime\*q \*q" integer \*q
The duration of the mouse click generated by tapping. Property: "Synaptics Tap
Durations"
.TP 7
.BI "Option \*qFastTaps\*q \*q" boolean \*q
Makes the driver react faster to a single tap, but also makes double
clicks caused by double tapping slower. Property: "Synaptics Tap FastTap"
.TP 7
.BI "Option \*qVertEdgeScroll\*q \*q" boolean \*q
Enable vertical scrolling when dragging along the right edge. Property:
"Synaptics Edge Scrolling"
.TP 7
.BI "Option \*qHorizEdgeScroll\*q \*q" boolean \*q
Enable horizontal scrolling when dragging along the bottom edge. Property:
"Synaptics Edge Scrolling"
.TP 7
.BI "Option \*qCornerCoasting\*q \*q" boolean \*q
Enable edge scrolling to continue while the finger stays in an edge corner.
Property: "Synaptics Edge Scrolling"
.TP 7
.BI "Option \*qVertTwoFingerScroll\*q \*q" boolean \*q
Enable vertical scrolling when dragging with two fingers anywhere on
the touchpad. Property: "Synaptics Two-Finger Scrolling"
.TP 7
.BI "Option \*qHorizTwoFingerScroll\*q \*q" boolean \*q
Enable horizontal scrolling when dragging with two fingers anywhere on
the touchpad. Property: "Synaptics Two-Finger Scrolling"
.TP 7
.BI "Option \*qVertScrollDelta\*q \*q" integer \*q
Move distance of the finger for a scroll event. Property: "Synaptics Scrolling
Distance"
.TP 7
.BI "Option \*qHorizScrollDelta\*q \*q" integer \*q
Move distance of the finger for a scroll event. Property: "Synaptics Scrolling
Distance"
.TP 7
.BI "Option \*qEdgeMotionMinZ\*q \*q" integer \*q
Finger pressure at which minimum edge motion speed is set. Property:
"Synaptics Edge Motion Pressure"
.TP
.BI "Option \*qEdgeMotionMaxZ\*q \*q" integer \*q
Finger pressure at which maximum edge motion speed is set. Property:
"Synaptics Edge Motion Pressure"
.TP
.BI "Option \*qEdgeMotionMinSpeed\*q \*q" integer \*q
Slowest setting for edge motion speed. Property: "Synaptics Edge Motion Speed"
.TP
.BI "Option \*qEdgeMotionMaxSpeed\*q \*q" integer \*q
Fastest setting for edge motion speed. Property: "Synaptics Edge Motion Speed"
.TP
.BI "Option \*qEdgeMotionUseAlways\*q \*q" boolean \*q
If on, edge motion is also used for normal movements.
.
If off, egde motion is used only when dragging. Property: "Synaptics Edge
Motion Always"
.TP
.BI "Option \*qMinSpeed\*q \*q" float \*q
Minimum speed factor. Property: "Synaptics Move Speed"
.TP
.BI "Option \*qMaxSpeed\*q \*q" float \*q
Maximum speed factor. Property: "Synaptics Move Speed"
.TP
.BI "Option \*qAccelFactor\*q \*q" float \*q
Acceleration factor for normal pointer movements. Property: "Synaptics Move
Speed"
.TP
.BI "Option \*qTrackstickSpeed\*q \*q" float \*q
Speed scale when in trackstick emulation mode. Property: "Synaptics Move Speed"
.TP
.BI "Option \*qPressureMotionMinZ\*q \*q" integer \*q
Finger pressure at which minimum pressure motion factor is applied. Property:
"Synaptics Pressure Motion"
.TP
.BI "Option \*qPressureMotionMaxZ\*q \*q" integer \*q
Finger pressure at which maximum pressure motion factor is applied.  Property:
"Synaptics Pressure Motion"
.TP
.BI "Option \*qPressureMotionMinFactor\*q \*q" integer \*q
Lowest setting for pressure motion factor. Property: "Synaptics Pressure
Motion Factor"
.TP
.BI "Option \*qPressureMotionMaxFactor\*q \*q" integer \*q
Greatest setting for pressure motion factor. Property: "Synaptics Pressure
Motion Factor"
.TP
.BI "Option \*qUpDownScrolling\*q \*q" boolean \*q
If on, the up/down buttons generate button 4/5 events.
.
If off, the up button generates a double click and the down button
generates a button 2 event. This option is only available for touchpads with
physical scroll buttons.
Property: "Synaptics Button Scrolling"
.TP
.BI "Option \*qLeftRightScrolling\*q \*q" boolean \*q
If on, the left/right buttons generate button 6/7 events.
.
If off, the left/right buttons both generate button 2 events.
This option is only available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling"
.TP
.BI "Option \*qUpDownScrollRepeat\*q \*q" boolean \*q
If on, and the up/down buttons are used for scrolling
(\fBUpDownScrolling\fR), these buttons will send auto-repeating 4/5 events,
with the delay between repeats determined by \fBScrollButtonRepeat\fR.
This option is only available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling Repeat"
.TP
.BI "Option \*qLeftRightScrollRepeat\*q \*q" boolean \*q
If on, and the left/right buttons are used for scrolling
(\fBLeftRightScrolling\fR), these buttons will send auto-repeating 6/7 events,
with the delay between repeats determined by \fBScrollButtonRepeat\fR.
This option is only available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling Repeat"
.TP
.BI "Option \*qScrollButtonRepeat\*q \*q" integer \*q
The number of milliseconds between repeats of button events 4-7 from the
up/down/left/right scroll buttons.
This option is only available for touchpads with physical scroll buttons.
Property: "Synaptics Button Scrolling Time"
.TP
.BI "Option \*qEmulateMidButtonTime\*q \*q" integer \*q
Maximum time (in milliseconds) for middle button emulation. Property:
"Synaptics Middle Button Timeout"
.TP
.BI "Option \*qEmulateTwoFingerMinZ\*q \*q" integer \*q
For touchpads not capable of detecting multiple fingers (Alps), this sets the
Z pressure threshold to emulate a two finger press. Property: "Synaptics
Two-Finger Pressure"
.TP
.BI "Option \*qEmulateTwoFingerMinW\*q \*q" integer \*q
Some touchpads report a two-finger touch as wide finger. This sets the finger
width threshold to emulate a two finger press. This feature works best with
(\fBPalmDetect\fR) off. Property: "Synaptics Two-Finger Width"
.TP
.BI "Option \*qTouchpadOff\*q \*q" integer \*q
Switch off the touchpad.
.
Valid values are:
.TS
l l.
0	Touchpad is enabled
1	Touchpad is switched off
2	Only tapping and scrolling is switched off
.TE
Property: "Synaptics Off"
.TP
.BI "Option \*qLockedDrags\*q \*q" boolean \*q
If off, a tap-and-drag gesture ends when you release the finger.
.
If on, the gesture is active until you tap a second time, or until
LockedDragTimeout expires. Property: "Synaptics Locked Drags"
.TP
.BI "Option \*qLockedDragTimeout\*q \*q" integer \*q
This parameter specifies how long it takes (in milliseconds) for the
LockedDrags mode to be automatically turned off after the finger is
released from the touchpad. Property: "Synaptics Locked Drags Timeout"
.TP
.BI "Option \*qRTCornerButton\*q \*q" integer \*q
.
Which mouse button is reported on a right top corner tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qRBCornerButton\*q \*q" integer \*q
Which mouse button is reported on a right bottom corner tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qLTCornerButton\*q \*q" integer \*q
Which mouse button is reported on a left top corner tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qLBCornerButton\*q \*q" integer \*q
Which mouse button is reported on a left bottom corner tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qTapButton1\*q \*q" integer \*q
Which mouse button is reported on a non-corner one-finger tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qTapButton2\*q \*q" integer \*q
Which mouse button is reported on a non-corner two-finger tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qTapButton3\*q \*q" integer \*q
Which mouse button is reported on a non-corner three-finger tap.
.
Set to 0 to disable. Property: "Synaptics Tap Action"
.TP
.BI "Option \*qClickFinger1\*q \*q" integer \*q
Which mouse button is reported when left-clicking with one finger.
.
Set to 0 to disable. Property: "Synaptics Click Action"
.TP
.BI "Option \*qClickFinger2\*q \*q" integer \*q
Which mouse button is reported when left-clicking with two fingers.
.
Set to 0 to disable. Property: "Synaptics Click Action"
.TP
.BI "Option \*qClickFinger3\*q \*q" integer \*q
Which mouse button is reported when left-clicking with three fingers.
.
Set to 0 to disable. Property: "Synaptics Click Action"
.TP
.BI "Option \*qCircularScrolling\*q \*q" boolean \*q
If on, circular scrolling is used. Property: "Synaptics Circular Scrolling"
.TP
.BI "Option \*qCircScrollDelta\*q \*q" float \*q
Move angle (radians) of finger to generate a scroll event. Property: "Synaptics
Circular Scrolling Distance"
.TP
.BI "Option \*qCircScrollTrigger\*q \*q" integer \*q
Trigger region on the touchpad to start circular scrolling
.TS
l l.
0	All Edges
1	Top Edge
2	Top Right Corner
3	Right Edge
4	Bottom Right Corner
5	Bottom Edge
6	Bottom Left Corner
7	Left Edge
8	Top Left Corner
.TE
Property: "Synaptics Circular Scrolling Trigger"
.TP
.BI "Option \*qCircularPad\*q \*q" boolean \*q
.
Instead of being a rectangle, the edge is the ellipse enclosed by the
Left/Right/Top/BottomEdge parameters.
.
For circular touchpads. Property: "Synaptics Circular Pad"
.TP
.BI "Option \*qPalmDetect\*q \*q" boolean \*q
If palm detection should be enabled.
.
Note that this also requires hardware/firmware support from the
touchpad. Property: "Synaptics Palm Detection"
.TP
.BI "Option \*qPalmMinWidth\*q \*q" integer \*q
Minimum finger width at which touch is considered a palm. Property: "Synaptics
Palm Dimensions"
.TP
.BI "Option \*qPalmMinZ\*q \*q" integer \*q
Minimum finger pressure at which touch is considered a palm. Property:
"Synaptics Palm Dimensions"
.TP
.BI "Option \*qCoastingSpeed\*q \*q" float \*q
Coasting threshold scrolling speed.
.
0 disables coasting. Property: "Synaptics Coasting Speed"
.TP
.BI "Option \*qSingleTapTimeout\*q \*q" integer \*q
Timeout after a tap to recognize it as a single tap. Property: "Synaptics Tap
Durations"
.TP
.BI "Option \*qGrabEventDevice\*q \*q" boolean \*q
If GrabEventDevice is true, the driver will grab the event device for
exclusive use when using the linux 2.6 event protocol.
.
When using other protocols, this option has no effect.
.
Grabbing the event device means that no other user space or kernel
space program sees the touchpad events. 
.
This is desirable if the X config file includes /dev/input/mice as an
input device, but is undesirable if you want to monitor the device
from user space.
.
When changing this parameter with the synclient program, the change
will not take effect until the synaptics driver is disabled and
reenabled. 
.
This can be achieved by switching to a text console and then switching
back to X.
.
.
.TP
.BI "Option \*qTapAndDragGesture\*q \*q" boolean \*q
Switch on/off the tap-and-drag gesture.
.
This gesture is an alternative way of dragging.
.
It is performed by tapping (touching and releasing the finger), then
touching again and moving the finger on the touchpad.
.
The gesture is enabled by default and can be disabled by setting the
TapAndDragGesture option to false. Property: "Synaptics Gestures"
.
.TP
.BI "Option \*qVertResolution\*q \*q" integer \*q
Resolution of X coordinates in units/millimeter. The value is used
together with HorizResolution to compensate unequal vertical and
horizontal sensitivity. Setting VertResolution and HorizResolution
equal values means no compensation. Default value is read from
the touchpad or set to 1 if value could not be read.
Property: "Synaptics Pad Resolution"
.
.TP
.BI "Option \*qHorizResolution\*q \*q" integer \*q
Resolution of Y coordinates in units/millimeter. The value is used
together with VertResolution to compensate unequal vertical and
horizontal sensitivity. Setting VertResolution and HorizResolution
equal values means no compensation. Default value is read from
the touchpad or set to 1 if value could not be read.
Property: "Synaptics Pad Resolution"
.
.TP
.BI "Option \*qAreaLeftEdge\*q \*q" integer \*q
Ignore movements, scrolling and tapping which take place left of this edge.
.
The option is disabled by default and can be enabled by setting the
AreaLeftEdge option to any integer value other than zero. If supported by the
server (version 1.9 and later), the edge may be specified in percent of
the total width of the touchpad. Property: "Synaptics Area"
.
.TP
.BI "Option \*qAreaRightEdge\*q \*q" integer \*q
Ignore movements, scrolling and tapping which take place right of this edge.
.
The option is disabled by default and can be enabled by setting the
AreaRightEdge option to any integer value other than zero. If supported by the
server (version 1.9 and later), the edge may be specified in percent of
the total width of the touchpad. Property: "Synaptics Area"
.
.TP
.BI "Option \*qAreaTopEdge\*q \*q" integer \*q
Ignore movements, scrolling and tapping which take place above this edge.
.
The option is disabled by default and can be enabled by setting the
AreaTopEdge option to any integer value other than zero. If supported by the
server (version 1.9 and later), the edge may be specified in percent of
the total height of the touchpad. Property: "Synaptics Area"
.
.TP
.BI "Option \*qAreaBottomEdge\*q \*q" integer \*q
Ignore movements, scrolling and tapping which take place below this edge.
.
The option is disabled by default and can be enabled by setting the
AreaBottomEdge option to any integer value other than zero. If supported by the
server (version 1.9 and later), the edge may be specified in percent of
the total height of the touchpad. Property: "Synaptics Area"
.

.SH CONFIGURATION DETAILS
.SS Area handling
The LeftEdge, RightEdge, TopEdge and BottomEdge parameters are used to
define the edge and corner areas of the touchpad.
.
The parameters split the touchpad area in 9 pieces, like this:
.LP
.TS
l|l|lsls
---
|c|cw(5P)|c|l
---
|c|c|c|l
|c|c|c|l
|c|c|c|l
---
|c|c|c|l
---
|lsl|ll.
	LeftEdge	RightEdge
			Physical top edge
1	2	3
			TopEdge

4	5	6

			BottomEdge
7	8	9
			Physical bottom edge
Physical left edge		Physical right edge
.TE
.LP
Coordinates to the left of LeftEdge are part of the left edge (areas
1, 4 and 7), coordinates to the left of LeftEdge and above TopEdge
(area 1) are part of the upper left corner, etc.
.PP
A good way to find appropriate edge parameters is to enable the
SHMConfig option and run "synclient \-m 1" to see the x/y coordinates
corresponding to different positions on the touchpad.
.PP
The perceived physical edges may be adjusted with the AreaLeftEdge,
AreaRightEdge, AreaTopEdge, and AreaBottomEdge options. If these values are
set to something other than the physical edges, input in the space between
the area edge and the respective physical edge is ignored. Note that this
reduces the available space on the touchpad.
.SS Tapping
A tap event happens when the finger is touched and released in a time
interval shorter than MaxTapTime, and the touch and release
coordinates are less than MaxTapMove units apart.
.
A "touch" event happens when the Z value goes above FingerHigh, and an
"untouch" event happens when the Z value goes below FingerLow.
.
.LP
The MaxDoubleTapTime parameter has the same function as the MaxTapTime
parameter, but for the second, third, etc tap in a tap sequence.
.
If you can't perform double clicks fast enough (for example, xmms
depends on fast double clicks), try reducing this parameter.
.
If you can't get word selection to work in xterm (ie button down,
button up, button down, move mouse), try increasing this parameter.
.
.LP
The ClickTime parameter controls the delay between the button down and
button up X events generated in response to a tap event.
.
A too long value can cause undesirable autorepeat in scroll bars and a
too small value means that visual feedback from the gui application
you are interacting with is harder to see.
.
For this parameter to have any effect, "FastTaps" has to be disabled.
.SS Acceleration
The MinSpeed, MaxSpeed and AccelFactor parameters control the pointer
motion speed.
.
The speed value defines the scaling between touchpad coordinates and
screen coordinates.
.
When moving the finger very slowly, the MinSpeed value is used, when
moving very fast the MaxSpeed value is used.
.
When moving the finger at moderate speed, you get a pointer motion
speed somewhere between MinSpeed and MaxSpeed.
.
If you don't want any acceleration, set MinSpeed and MaxSpeed to the
same value.
.
.LP
The MinSpeed, MaxSpeed and AccelFactor parameters don't have any
effect on scrolling speed.
.
Scrolling speed is determined solely from the VertScrollDelta and
HorizScrollDelta parameters.
.
To disable vertical or horizontal scrolling, set VertScrollDelta or
HorizScrollDelta to zero.
.
.LP
When hitting an egde, movement can be automatically continued.
.
If EdgeMotionUseAlways is false, edge motion is only used when
dragging.
.
With EdgeMotionUseAlways set to true, it is also used for normal
cursor movements.
.
.LP
Edge motion speed is calculated by taking into account the amount of
pressure applied to the touchpad.
.
The sensitivity can be adjusted using the EdgeMotion parameters.
.
If the pressure is below EdgeMotionMinZ, EdgeMotionMinSpeed is used,
and if the pressure is greater than EdgeMotionMaxZ, EdgeMotionMaxSpeed
is used.
.
For a pressure value between EdgeMotionMinZ and EdgeMotionMaxZ, the
speed is increased linearly.
.
.LP
When pressure motion is activated, the cursor motion speed depends
on the pressure exerted on the touchpad (the more pressure exerted on
the touchpad, the faster the pointer).
.
More precisely the speed is first calculated according to MinSpeed,
MaxSpeed and AccelFactor, and then is multiplied by a sensitivity
factor.
.
The sensitivity factor can be adjusted using the PressureMotion
parameters.
.
If the pressure is below PressureMotionMinZ, PressureMotionMinFactor
is used, and if the pressure is greater than PressureMotionMaxZ,
PressureMotionMaxFactor is used.
.
By default, PressureMotionMinZ and PressureMotionMaxZ are equal to
EdgeMotionMinZ and EdgeMotionMaxZ.
.
For a pressure value between PressureMotionMinZ and
PressureMotionMaxZ, the factor is increased linearly.
.SS Middle button emulation
Since most synaptics touchpad models don't have a button that
corresponds to the middle button on a mouse, the driver can emulate
middle mouse button events.
.
If you press both the left and right mouse buttons at almost the same
time (no more than EmulateMidButtonTime milliseconds apart) the driver
generates a middle mouse button event.
.
.SS Circular scrolling
Circular scrolling acts like a scrolling wheel on the touchpad.
.
Scrolling is engaged when a drag starts in the given CircScrollTrigger
region, which can be all edges, a particular side, or a particular
corner.
.
Once scrolling is engaged, moving your finger in clockwise circles
around the center of the touchpad will generate scroll down events and
counter clockwise motion will generate scroll up events.
.
Lifting your finger will disengage circular scrolling.
.
Use tight circles near the center of the pad for fast scrolling and
large circles for better control.
.
When used together with vertical scrolling, hitting the upper or lower
right corner will seamlessly switch over from vertical to circular
scrolling.

.SS Coasting
Coasting is enabled by setting the CoastingSpeed parameter to a
non-zero value.
.
Coasting comes in two flavors: conventional (finger off) coasting, and
corner (finger on) coasting.
.LP
Conventional coasting is enabled when coasting is enabled,
and CornerCoasting is set to false.
.
When conventional coasting is enabled, horizontal/vertical scrolling
can continue after the finger is released from the lower/right edge of
the touchpad.
.
The driver computes the scrolling speed corresponding to the finger
speed immediately before the finger leaves the touchpad.
.
If this scrolling speed is larger than the CoastingSpeed parameter
(measured in scroll events per second), the scrolling will continue
with the same speed in the same direction until the finger touches the
touchpad again.
.
.LP
Corner coasting is enabled when coasting is enabled, and
CornerCoasting is set to true.
.
When corner coasting is enabled, edge scrolling can continue as long
as the finger stays in a corner.
.
Coasting begins when the finger enters the corner, and continues until
the finger leaves the corner.
.
CornerCoasting takes precedence over the seamless switch from edge
scrolling to circular scrolling.  That is, if CornerCoasting is
active, scrolling will stop, and circular scrolling will not start,
when the finger leaves the corner.

.SS Trackstick mode
Trackstick emulation mode is entered when pressing the finger hard on
the touchpad.
.
The FingerPress parameter controls the minimum required finger
pressure.
.
If the finger hasn't moved more than MaxTapMove after MaxTapTime has
elapsed, trackstick mode is entered.
.
In this mode, moving the finger slightly in any direction gives a
speed vector that moves the pointer.
.
The TrackstickSpeed parameter controls the ratio between pointer speed
and finger movement distance.
.
Trackstick mode is exited when the finger pressure drops below
FingerLow or when the finger is moved further than MaxTapMove away
from the initial position.

.SH "DEVICE PROPERTIES"
Synaptics 1.0 and higher support input device properties if the driver is
running on X server 1.6 or higher. On these driver versions, Option
"SHMConfig" is not needed to enable run-time configuration. The synclient tool
shipped with synaptics version 1.1 uses input device properties by default.
.
Properties supported:
.TP 7
.BI "Synaptics Edges"
32 bit, 4 values, left, right, top, bottom.

.TP 7
.BI "Synaptics Finger"
32 bit, 3 values, low, high, press.

.TP 7
.BI "Synaptics Tap Time"
32 bit.

.TP 7
.BI "Synaptics Tap Move"
32 bit.

.TP 7
.BI "Synaptics Tap Durations"
32 bit, 3 values, single touch timeout, max tapping time for double taps,
duration of a single click.

.TP 7
.BI "Synaptics Tap FastTap"
8 bit (BOOL).

.TP 7
.BI "Synaptics Middle Button Timeout"
32 bit.

.TP 7
.BI "Synaptics Two-Finger Pressure"
32 bit.

.TP 7
.BI "Synaptics Two-Finger Width"
32 bit.

.TP 7
.BI "Synaptics Scrolling Distance"
32 bit, 2 values, vert, horiz.

.TP 7
.BI "Synaptics Edge Scrolling"
8 bit (BOOL), 3 values, vertical, horizontal, corner.

.TP 7
.BI "Synaptics Two-Finger Scrolling"
8 bit (BOOL), 2 values, vertical, horizontal.

.TP 7
.BI "Synaptics Move Speed"
FLOAT, 4 values, min, max, accel, trackstick.

.TP 7
.BI "Synaptics Edge Motion Pressure"
32 bit, 2 values, min, max.

.TP 7
.BI "Synaptics Edge Motion Speed"
32 bit, 2 values, min, max.

.TP 7
.BI "Synaptics Edge Motion Always"
8 bit (BOOL).

.TP 7
.BI "Synaptics Button Scrolling"
8 bit (BOOL), 2 values, updown, leftright.

.TP 7
.BI "Synaptics Button Scrolling Repeat"
8 bit (BOOL), 2 values, updown, leftright.

.TP 7
.BI "Synaptics Button Scrolling Time"
32 bit.

.TP 7
.BI "Synaptics Off"
8 bit, valid values (0, 1, 2).

.TP 7
.BI "Synaptics Locked Drags"
8 bit (BOOL).

.TP 7
.BI "Synaptics Locked Drags Timeout"
32 bit.

.TP 7
.BI "Synaptics Tap Action"
8 bit, up to MAX_TAP values (see synaptics.h), 0 disables an element. order:
RT, RB, LT, LB, F1, F2, F3.

.TP 7
.BI "Synaptics Click Action"
8 bit, up to MAX_CLICK values (see synaptics.h), 0 disables an element.
order: Finger 1, 2, 3.

.TP 7
.BI "Synaptics Circular Scrolling"
8 bit (BOOL).

.TP 7
.BI "Synaptics Circular Scrolling Distance"
FLOAT.

.TP 7
.BI "Synaptics Circular Scrolling Trigger"
8 bit, valid values 0..8 (inclusive) order: any edge, top, top + right,
right, right + bottom, bottom, bottom + left, left, left  + top.

.TP 7
.BI "Synaptics Circular Pad"
8 bit (BOOL).

.TP 7
.BI "Synaptics Palm Detection"
8 bit (BOOL).

.TP 7
.BI "Synaptics Palm Dimensions"
32 bit, 2 values, width, z.

.TP 7
.BI "Synaptics Coasting Speed"
FLOAT.

.TP 7
.BI "Synaptics Pressure Motion"
32 bit, 2 values, min, max.

.TP 7
.BI "Synaptics Pressure Motion Factor"
FLOAT, 2 values, min, max.

.TP 7
.BI "Synaptics Grab Event Device"
8 bit (BOOL).

.TP 7
.BI "Synaptics Gestures"
8 bit (BOOL), 1 value, tap-and-drag.

.TP 7
.BI "Synaptics Area"
The AreaLeftEdge, AreaRightEdge, AreaTopEdge and AreaBottomEdge parameters are used to
define the edges of the active area of the touchpad. All movements, scrolling and tapping
which take place outside of this area will be ignored. This property is disabled by
default.

32 bit, 4 values, left, right, top, bottom. 0 disables an element.

.TP 7
.BI "Synaptics Capabilities"
This read-only property expresses the physical capability of the touchpad,
most notably whether the touchpad hardware supports multi-finger tapping and
scrolling.

8 bit (BOOL), 5 values (read-only), has left button, has middle button, has
right button, two-finger detection, three-finger detection.

.TP 7
.BI "Synaptics Pad Resolution"
32 bit unsigned, 2 values (read-only), vertical, horizontal in units/millimeter.

.SH "NOTES"
There is an example hal policy file in
.I ${sourcecode}/fdi/11-x11-synaptics.fdi
which will enable the driver based on the information if the hardware
is available. Feel free to copy it to
.I /etc/hal/fdi/policy
and customize it to your needs. You can pass custom options to the driver
using x11_options properties. Note that this requires xorg-server-1.5 or
higher.
.LP
If either of
.BI "Protocol \*q" auto-dev \*q
(default) or
.BI "Protocol \*q" event \*q
is used, the driver initializes defaults based on the capabilities reported by
the kernel driver. Acceleration, edges and resolution are based on the dimensions
reported by the kernel. If the kernel reports multi-finger detection, two-finger
vertical scrolling is enabled, horizontal two-finger scrolling is disabled and
edge scrolling is disabled. If no multi-finger capabilities are reported,
edge scrolling is enabled for both horizontal and vertical scrolling.
Tapping is disabled by default for touchpads with one or more physical buttons.
To enable it you need to map tap actions to buttons. See the "TapButton1",
"TapButton2" and "TapButton3" options.
.LP
Button mapping for physical buttons is handled in the server.
If the device is switched to left-handed (an in-server mapping of physical
buttons 1, 2, 3 to the logical buttons 3, 2, 1, respectively), both physical
and TapButtons are affected. To counteract this, the TapButtons need to be set
up in reverse order (TapButton1=3, TapButton2=1).

.SH "REMOVED OPTIONS"
The following options are no longer part of the driver configuration:
.TP
.BI "Option \*qRepeater\*q \*q" string \*q
.TP
.BI "Option \*qHistorySize\*q \*q" integer \*q
.TP
.BI "Option \*qSpecialScrollAreaRight\*q \*q" boolean \*q
.TP
.BI "Option \*qGuestMouseOff\*q \*q" boolean \*q

.SH "AUTHORS"
.LP
Peter Osterlund <petero2@telia.com> and many others.
.SH "SEE ALSO"
.LP
__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__), synclient(__appmansuffix__), syndaemon(__appmansuffix__)