On Sun, Oct 27, 2002 at 07:54:39PM -0500, [EMAIL PROTECTED] wrote: > On Sat, Oct 26, 2002 at 09:20:05PM -0400, Zephaniah E. Hull wrote: > > To make a long story short, X is wrong in how it parses the wheel data > > for EXPS/2 protocol mice. > > > > 0xF and 0x1 are used to indicate the first wheel, and 0xE and 0x2 for > > the second wheel. > > (Yes, I have real hardware which generates this.) > > Make the short story longer; specifically, I need to know for which mice > or mouse protocols this is going to generate spurious events, which you > mentioned would happen when you were talking to me about this on IRC.
This is going to generate spurious events when speaking the EXPS/2
protocol from unpatched kernel HID layers, specificly
drivers/input/mousedev.c generates the wheel data incorrectly, I have a
patch for that which I'm trying to get accepted upstream.
I have actual hardware which speaks the protocol in question, in both
one and two wheel versions, and none actually generate anything except
0x1 and 0xf for the first wheel, the kernel will generate something
other then that, if unpatched, for /very/ rapid wheel movements on
slower systems.
The problems of that with X and this patch are further reduced by the
fact that ZAxisMapping will, if only given two buttons, map W axis (0x2
and 0xe) to the same buttons as the z axis, and if it is something other
then those two it will be dropped.
I do not expect to see anyone suddenly loosing functionality from this
patch. (=:]
Zephaniah E. Hull.
--
1024D/E65A7801 Zephaniah E. Hull <[EMAIL PROTECTED]>
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> Is there an API or other means to determine what video
> card, namely the chipset, that the user has installed
> on his machine?
On a modern X86 machine use the PCI/AGP bus data. On a PS/2 use the MCA bus
data. On nubus use the nubus probe data. On old style ISA bus PCs done a large
pointy hat and spend several years reading arcane and forbidden scrolls
-- Alan Cox
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