[Trac #683] Current handling of non-keyboard 'keys' suboptimal.

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#683: Current handling of non-keyboard 'keys' suboptimal.
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 Reporter:  warp         |       Owner:  mfoster  
     Type:  enhancement  |      Status:  new      
 Priority:  normal       |   Milestone:  Untriaged
Component:  hardware     |    Keywords:           
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 At the moment the EC is watching several keys on the unit, such as the
 game keys, and inserting them into the keyboard command stream on the PS2
 port.

 For several reasons, not the least of which is the number of problems we
 have been having with data over the PS2 ports getting mangled in one way
 or another by the EC, it would be vastly preferable if the EC code could
 leave the PS2 datastreams alone entirely, and give us the data for these
 other keys via some other interrupt driven path.

 Off the top of my head, this would require at minimum another interrupt,
 and a quick OLPC specific kernel driver, so it's probably not something to
 try and get done before B2, if we decide to do it at all.

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Ticket URL: <http://dev.laptop.org/ticket/683>
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