Re: How to get pen pressure under Opie?
Chris Larson <[email protected]>
| Newsgroups | gmane.comp.handhelds.opie.devel |
|---|---|
| Message-ID | <[email protected]> |
* Holger Schurig ([email protected]) wrote: > > Does anybody have a solution to that problem? Obviously, a good drawing > > application _must_ have access to such information. > > I'm not sure about Sharp or HP devices, but the pen pressure on my device > wouldn't really be useful. When I take some thing (e.g. a razor, or a pen) > and put it at various locations of my touch panel, then the reported pressure > is not identical, despite the weight of the thing and therefore the applied > pressure is. On some panels, depending on the nature of the inconsistencies, you can make it useful. For example, using the tsc2103 controller and a panel on the device I was working on at TI in E&PS, I was able to write a linear calibration (thankfully it was linear) for its pressure values. I'd like to see a new tslib handle this a bit better, via a more extensible, modular calibration piece. -- Chris Larson - kergoth at handhelds dot org Core Developer/Architect - BitBake, OpenEmbedded, OpenZaurus _______________________________________________ http://opie.handhelds.org/cgi-bin/moin.cgi/DeveloperWikiIndex Opie-devel mailing list [email protected] https://handhelds.org/mailman/listinfo/opie-devel