File:  [NetBSD Developer Wiki] / wikisrc / projects / project / ledapi.mdwn
Revision 1.2: download - view: text, annotated - select for diffs
Sun Nov 6 14:48:47 2011 UTC (4 years, 6 months ago) by jmmv
Branches: MAIN
CVS tags: HEAD
Define the per-project category and difficulty at the template level,
instead of manually tagging the project pages.  While doing this, prefix
the tags with "category:" and "difficulty:" to make them easier to

[[!template id=project

title="LED/LCD Generic API"


[Marc Balmer](

duration="3 months"

Design and implement a general API for control of LED and LCD type devices on NetBSD. The API would allow devices to register individual LED and LCD devices, along with a set of capabilities for each one. Devices that wish to display status via an LED/LCD would also register themselves as an event provider. A userland program would control the wiring of each event provider, to each output indicator. The API would need to encompass all types of LCD displays, such as 3 segment LCDs, 7 segment alphanumerics, and simple on/off state LED's. A simple example is a keyboard LED, which is an output indicator, and the caps-lock key being pressed, which is an event provider.

There is prior art in OpenBSD; it should be checked for suitability, and any resulting API should not differ from theirs without reason.

[[!tag gsoc]]

CVSweb for NetBSD wikisrc <> software: FreeBSD-CVSweb