#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-beta
          Component:  kernel    |     Version:  not specified    
         Resolution:            |    Keywords:                   
        Next_action:  diagnose  |    Verified:  0                
Deployment_affected:            |   Blockedby:                   
           Blocking:            |  
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Comment(by Quozl):

 XO-1, build 802, Measure 21. Mono 3.5mm plug connected to CRO channel A
 via a BNC T-piece. Probe connected to the same T-piece, and the other end
 to the 0.5V 1kHz calibration point on the CRO panel. (Same electrical
 configuration as previous test).

  * in sound capture mode Measure showed the 1kHz square wave, though it
 was so large the amplitude control had to be reduced to three of four
 steps from the bottom of the range before the curve would fit, therefore
 the XO-1 is more sensitive,

  * in resistance sensor capture mode Measure showed the square wave taking
 up the lower third of the display area, with the bottom of the wave
 aligned with the bottom of the display, therefore the XO-1 is more
 sensitive,

  * in voltage sensor capture mode the curve was offset slightly down, such
 that only about a tenth of the display area was used.

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Ticket URL: <http://dev.laptop.org/ticket/9604#comment:17>
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