#12456 NORM 13.1.0: XO-4 C1 USB enumeration failure on resume

Zarro Boogs per Child bugtracker at laptop.org
Thu Jan 31 16:57:15 EST 2013

#12456: XO-4 C1 USB enumeration failure on resume
           Reporter:  greenfeld  |       Owner:  cjb                              
               Type:  defect     |      Status:  new                              
           Priority:  normal     |   Milestone:  13.1.0                           
          Component:  kernel     |     Version:  Development build as of this date
         Resolution:             |    Keywords:                                   
        Next_action:  diagnose   |    Verified:  0                                
Deployment_affected:             |   Blockedby:                                   
           Blocking:             |  

Comment(by wad):

 James, are you sure that gpio doesn't need configuration as well ?   I
 didn't think any software currently used it.

 I checked, and the USB hub is power cycled on suspend/resume.   The
 +3.3V_USB rail is clamped to drop quickly.

 What was the wakeup method used in testing ?

Ticket URL: <http://dev.laptop.org/ticket/12456#comment:13>
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