Messages in this thread | | | From | Matt Gibson <> | Subject | Re: Complaint: Wacom driver in 2.6 | Date | Tue, 30 Sep 2003 18:13:03 +0100 |
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[disclaimer: I am not a kernel developer!] On Tuesday 30 Sep 2003 07:59, Simon Ask Ulsnes <simon@ulsnes.dk> wrote: > Thanks for replying. > You aren't even using the wacom driver!
I _am_ using the wacom driver. I'm just using the wacom kernel driver rather than the XFree86 wacom driver.
> Mine works too in that way (I think it is some kind of regular PS/2 mouse > emulation or so).
I think it goes something like this: the kernel wacom driver now interprets wacom packets into standard kernel mouse input. See drivers/usb/input/ wacom.c for that: it's the wacom_graphire_irq() function that's doing it for us both. Then /dev/mice gathers the input from all sources like this and presents them as a single ps/2-style mouse interface. I _think_ this is done in mousedev.c, but I haven't really looked into it. Someone feel free to correct me!
On my machine, the result is that events from both my Wacom and my old PS/2 style mouse are seamlessly merged into /dev/mice, so that's all X needs to consider, and I could use them both at once if I wanted. Not that useful to me, in fact, and the PS/2 mouse is only connected for those rare occasions when I boot into some ancient program from a DOS floppy, but hey...
I think, if you want to get the XFree86 driver working, you can't use /dev/ mice as well (otherwise, for example, when using the pen, your X mouse will get events from both /dev/mice, as the kernel translates the pen movements into /dev/mice events, _and_ from the Wacom driver interpreting the same input event stream.
> Come to think of it, maybe the problem lies in the XFree86 driver, which I > suppose isn't really compatible with the new kernel. Well, whatayaknow... > ;-)
I think that may be your problem. I don't know whether the standard event interface has changed at all recently. I haven't found any need for the extra tablet features yet that would need me to look into the XFree driver thoroughly (one thing I do remember, though, is that the last time I looked, you needed to remove the mouse from the pad and drop it back down again before the driver started working -- did you try that, or were you seeing weird results rather than no results at all?)
Anyway. It's quite possible that as 2.6 starts "getting about a bit", the XFree86 driver will be naturally updated to cope with it. I don't know what the current status of the driver is. The project homepage is here: http://people.mandrakesoft.com/~flepied/projects/wacom/ ...but I'm guessing you'd already found that.
Good luck!
M
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