File:  [NetBSD Developer Wiki] / wikisrc / projects / project / ledapi.mdwn
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Thu Feb 15 00:56:34 2018 UTC (9 months, 3 weeks ago) by maya
Branches: MAIN
CVS tags: HEAD
Marking this inactive failed, revert to avoid future confusion.

    1: [[!template id=project
    2: 
    3: title="LED/LCD Generic API"
    4: 
    5: contact="""
    6: [tech-kern](mailto:tech-kern@NetBSD.org)
    7: """
    8: 
    9: mentors="""
   10: [Marc Balmer](mailto:mbalmer@NetBSD.org)
   11: """
   12: 
   13: category="kernel"
   14: difficulty="medium"
   15: duration="3 months"
   16: 
   17: description="""
   18: 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.
   19: 
   20: There is prior art in OpenBSD; it should be checked for suitability, and any resulting API should not differ from theirs without reason.
   21: 
   22: Milestones:
   23: 
   24: * a port of OpenBSD's LED tools
   25: * a userland tool to control LED
   26: * demonstration of functionality
   27: * integration into NetBSD
   28: 
   29: """
   30: ]]

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