#9604 NORM 1.5-sof: build DC sensor mode on audio driver

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#9604: build DC sensor mode on audio driver
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           Reporter:  Quozl             |       Owner:  dsd                
               Type:  defect            |      Status:  new                
           Priority:  normal            |   Milestone:  1.5-software-update
          Component:  measure-activity  |     Version:  not specified      
         Resolution:                    |    Keywords:                     
        Next_action:  diagnose          |    Verified:  0                  
Deployment_affected:                    |   Blockedby:                     
           Blocking:                    |  
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Changes (by Quozl):

  * component:  kernel => measure-activity
  * milestone:  1.5-software-beta => 1.5-software-update


Comment:

 Several of the previous tests above were invalid because of the shorting
 of the mono plug.  Once that was identified, the tests passed.

 A DC offset on the samples has been logged as a new ticket #9851, as this
 will be either hardware or kernel related.

 The Measure activity is somewhat insensitive to changes to the amplitude
 slider; there seem to be only four positions, corresponding to 25%, 50%,
 75% and 100% ''Capture'' mixer levels.  This need not be tracked here.

 So while there was a potential hardware issue with DC sensor mode or the
 audio driver, it appears not to be the case and we can focus on other
 priorities.

 DC Sensor mode in Measure does work on XO-1.5, especially if a stereo plug
 is used.

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Ticket URL: <http://dev.laptop.org/ticket/9604#comment:19>
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