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Here's a quick and simple C program that reads a packet from the
accelerometer once per second, and rotates the screen to a new
orientation if the orientation has changed.
I don't mean this to conflict with Paul's excellent work on Gestures; my reason for writing it is so that it can be used as an always-on daemon in the OM distributions. (Full gesture interpretation is more CPU heavy and requires reading data more often than once per second, so perhaps that will be done on-demand instead of always-on.)
The code is:
http://github.com/cjb/freerunner-rotate/tree/master/rotate.c?raw=true
There's an ARM binary here (chmod a+x rotate && ./rotate):
http://dev.laptop.org/~cjb/rotate
There's also a complete rewrite at http://blog.1407.org/tag/rotate
And you're welcome to make patches against the GIT repo here:
git://github.com/cjb/freerunner-rotate.git
Would anyone else be interested in being the maintainer of this package? It would involve packaging it up in bitbake/OE and trying to persuade the various OM distros to include it by default. (Perhaps with an on/off control panel entry in distros that make that easy to do?)
Comments appreciated. Thanks!
- Chris. -- Chris Ball <cjb_at_laptop_dot_org>
[1] how to display data from accelerometers on Desktop in gnuplot (there is a few of czech text, but there is also youtube video)
opkg install http://projects.openmoko.org/frs/download.php/392/accel-rotate_0.2_armv4t.ipk update-rc.d accel-rotate defaults
echo "/opt/Trolltech/Qtopia/lib/">> /etc/ld.so.conf.d/local.conf ldconfig opkg install http://projects.openmoko.org/frs/download.php/413/accel-rotate_0.2_qte441_armv4t.ipk /etc/init.d/accel-rotate start
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Rotate
Rotates the screen according to the position of the Neo FreeRunner.
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