#11286 NORM 12.1.0: powerd should not suspend on open external serial devices

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#11286: powerd should not suspend on open external serial devices
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           Reporter:  greenfeld               |       Owner:  pgf                              
               Type:  enhancement             |      Status:  new                              
           Priority:  normal                  |   Milestone:  12.1.0                           
          Component:  power manager (powerd)  |     Version:  Development build as of this date
         Resolution:                          |    Keywords:                                   
        Next_action:  design                  |    Verified:  0                                
Deployment_affected:                          |   Blockedby:                                   
           Blocking:                          |  
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Comment(by greenfeld):

 The experience I had years ago is sadly exactly that -- I saw multiple
 programs within the same Linux distribution write differently named lock
 files.  I forget the exact details.

 This might need a bit more research to see what is being done by various
 programs nowadays.

 An lsof equivalent looking for serial USB devices might work; but could be
 rather slow to use.

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Ticket URL: <http://dev.laptop.org/ticket/11286#comment:7>
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