Openmoko Bug #2185: AUX button makes interrupt storm

Openmoko Public Trac bugs at
Sun Dec 21 21:35:13 CET 2008

#2185: AUX button makes interrupt storm
 Reporter:  vnevoa   |          Owner:  openmoko-devel       
     Type:  defect   |         Status:  new                  
 Priority:  normal   |      Milestone:                       
Component:  unknown  |        Version:  Om2008.9-dev         
 Severity:  normal   |       Keywords:  AUX button interrupts
 Haspatch:  0        |      Blockedby:                       
Estimated:           |    Patchreview:                       
 Blocking:           |   Reproducible:  always               

Comment(by andy):

 Nelson, just an idea from a different angle: the AUX key is pulled down by
 100K, it probably means it falls down only quite slowly when the key is
 released.  During that fall it could spew interrupts while it is in the
 middle area.

 At the moment we don't apply GPIO pulldown on GPF6 which is AUX, if we did
 that we would decrease the pulldown to around a third of what it is now
 and reduce the problem if it comes from that direction.  So maybe give
 that a try as well.

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