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ZAxisMapping Granularity for an IBM NetVista USB Mouse



-------- Original Message --------
Subject: ZAxisMapping Granularity for an IBM NetVista USB Mouse
From: <seniort5@xxxxxxxxxxxx>
Date: Wed, December 18, 2002 1:13 pm
To: <xpert@xxxxxxxxxxx>

Hello. First, the problem :

I've been told that IBM made a hash of the NetVista USB mouse's scroll
button implementation (which is a little joystick-style button on the top
of the mouse), and that this is right place to come for a solution. Using
a USB event reader I get the following type of output from this button :
(Moving 'scroll' button up...)

Event: time 1038686594.818629, type 2 (Relative), code 0 (X), value -1
Event: time 1038686594.858633, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686594.858638, type 2 (Relative), code 2 (Z), value 19
Event: time 1038686594.882616, type 2 (Relative), code 0 (X), value 1
Event: time 1038686594.914619, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686594.914624, type 2 (Relative), code 2 (Z), value 18
Event: time 1038686594.970610, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686594.970615, type 2 (Relative), code 2 (Z), value 22
Event: time 1038686594.994601, type 2 (Relative), code 0 (X), value -1
Event: time 1038686595.026605, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686595.026610, type 2 (Relative), code 2 (Z), value 16
Event: time 1038686595.082582, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686595.082586, type 2 (Relative), code 2 (Z), value 16
Event: time 1038686595.138580, type 2 (Relative), code 8 (Wheel), value
63 Event: time 1038686595.138585, type 2 (Relative), code 2 (Z), value 24
Event: time 1038686595.194561, type 2 (Relative), code 8 (Wheel), value
63

(Moving 'scroll' button down...)

Event: time 1038686627.580667, type 2 (Relative), code 2 (Z), value -17
Event: time 1038686627.636650, type 2 (Relative), code 8 (Wheel), value
-63 Event: time 1038686627.636655, type 2 (Relative), code 2 (Z), value
-10 Event: time 1038686627.692645, type 2 (Relative), code 8 (Wheel),
value -63 Event: time 1038686627.692651, type 2 (Relative), code 2 (Z),
value -15 Event: time 1038686627.748634, type 2 (Relative), code 8
(Wheel), value -63 Event: time 1038686627.748638, type 2 (Relative), code
2 (Z), value -7 Event: time 1038686627.796622, type 2 (Relative), code 8
(Wheel), value -63 Event: time 1038686627.796627, type 2 (Relative), code
2 (Z), value -7 Event: time 1038686627.852615, type 2 (Relative), code 8
(Wheel), value -63 Event: time 1038686627.852621, type 2 (Relative), code
2 (Z), value -11 Event: time 1038686627.908601, type 2 (Relative), code 8
(Wheel), value -63 Event: time 1038686627.908606, type 2 (Relative), code
2 (Z), value -11 Event: time 1038686627.964593, type 2 (Relative), code 8
(Wheel), value -63

So it looks to me like I need to change the mouse granularity some how so
that it is much less sensitive to the (Z) value. Is this correct?
I use KDE 3.0 and it only allows to you set a minimum of one line
scrolling per wheel event (correct?) and it looks like I need about 0.1
or something thereabouts? Has anybody got any suggestions?
P.S. I'd like to look back through the mailing list to find similar
problems but I don't know where it is or how to do this. Could somebody
please let me know. Many thanks.

Ben



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