File:  [NetBSD Developer Wiki] / wikisrc / projects / project / ledapi.mdwn
Revision 1.1: download - view: text, annotated - select for diffs
Sun Nov 6 01:59:12 2011 UTC (4 years, 8 months ago) by jmmv
Branches: MAIN
CVS tags: HEAD
Move existing project definitions from projects/gsoc_2011/ to
projects/project/ .

The goal for this reorganization is to remove any knowledge of the projects
classification from the file hierarchy: the classification goes into tags,
and projects indexes automatically list projects based on such tags.

Also, the current gsoc_2011 name was wrong anyway, because GSoC 2011 has
already concluded and projects would have had to move to a gsoc_2012 directory

Lastly, yes, "projects/project/*" is slightly redundant.  But I want to keep
the project lists from the projects "database" clearly separated.

This is as proposed in www@.

[[!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]]
[[!tag medium]]
[[!tag kernel]]

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