#1420 BLOC Trial-2: Audio driver for AD1888 - power verification.

[Zarro Boogs per Child]

#1420: Audio driver for AD1888 - power verification.
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  Reporter:  jg           |       Owner:  cjb    
      Type:  enhancement  |      Status:  new    
  Priority:  blocker      |   Milestone:  Trial-2
 Component:  kernel       |     Version:         
Resolution:               |    Keywords:  power  
  Verified:  0            |  
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Comment (by cjb):

 Replying to [comment:12 jayakumar]:
 > Ok. Attached the patch against olpc-2.6. One more note, if one was
 recording in analog input mode, then V_Ref is turned off and thus the Mic
 LED is off. I'm not sure if that's the behavior that is desired. I assume
 there's a direct trace from the V_Ref pin to the LED, so the driver can't
 change that behavior.

 Without the voltage from V_ref, it's unlikely that you could hear anything
 from the mic, and the purpose of the LED is as a privacy light, so I don't
 think this is a problem.  We have an intern looking at applications of
 analog input mode; I'll ask him to verify that there isn't useful
 microphone data lurking there.  Thanks!

 (Also, thanks very much indeed for the patch, which I'll test tomorrow.)

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Ticket URL: <http://dev.laptop.org/ticket/1420#comment:13>
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