altos: Add button driver and event queue
authorKeith Packard <keithp@keithp.com>
Tue, 7 Aug 2012 05:53:52 +0000 (22:53 -0700)
committerKeith Packard <keithp@keithp.com>
Tue, 7 Aug 2012 05:53:52 +0000 (22:53 -0700)
With this, a single task can wait for any button or quadrature input
device.

Signed-off-by: Keith Packard <keithp@keithp.com>

No differences found