#9008 NORM Not Tri: B4, touchpad suddenly stops working

[Zarro Boogs per Child]

#9008: B4, touchpad suddenly stops working
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           Reporter:  HoboPrimate  |       Owner:  dsaxena      
               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 pgf):

 Replying to [comment:3 dsaxena]:
 >
 > My guess from looking at the code is that we're running into this path
 in hgpk_force_recalibrate():
 >
 {{{
 >         /*
 >          * XXX: If a finger is down during this delay, recalibration
 will
 >          * detect capacitance incorrectly.  This is a hardware bug, and
 >          * we may need to work around that here.
 >          */
 >
 >         if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
 >                 return -1;
 >
 }}}
 >
 > If we return -1 here, {{{psmouse->state}}} is left as
 {{{PSMOUSE_INITIALIZING}}} and the psmouse interrupt handler will discard
 all packets. An X restart will not fix this b/c it does not cause the
 driver to rebind to the device and reinitialize this.
 >

 i think the same is true if we fail any of the immediately previous steps
 in the recalibration command itself.

 what's the right fix?  just set it to PSMOUSE_ACTIVATED, and assume we'll
 recalibrate shortly, i suppose?

-- 
Ticket URL: <http://dev.laptop.org/ticket/9008#comment:6>
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