#10137 NORM Not Tri: XO-1.5 camera FPS limit inaccurate?

[Zarro Boogs per Child]

#10137: XO-1.5 camera FPS limit inaccurate?
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           Reporter:  dsd        |       Owner:  corbet       
               Type:  defect     |      Status:  new          
           Priority:  normal     |   Milestone:  Not Triaged  
          Component:  kernel     |     Version:  not specified
         Resolution:             |    Keywords:               
        Next_action:  never set  |    Verified:  0            
Deployment_affected:             |   Blockedby:               
           Blocking:             |  
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Comment(by corbet):

 It turns out that the ov7670 on the XO 1.5 is clocked at 90fps or just a
 little more.  Amazing.

 I can't find anything in the datasheet to suggest that the clock rate can
 be changed at the hardware level.  But we can adjust the ov7670 clock
 divider.  I've found a relatively clean way to do that with an ov7670
 module parameter specifying the base frame rate.  That rate remains 30fps
 in mainline, but the version just pushed to my
 olpc-2.6.31-cam/olpc-2.6.34-jc branches sets it to 90fps.  And, in fact,
 the frame rates are now far less fictional than they were in the past.

 Apologies, I should have noticed this.  I can be awfully dense
 sometimes...

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Ticket URL: <http://dev.laptop.org/ticket/10137#comment:3>
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