#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:  communicate             |    Verified:  0                                
Deployment_affected:                          |   Blockedby:                                   
           Blocking:                          |  
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Changes (by greenfeld):

  * next_action:  test in build => communicate


Comment:

 I still do not quite get what we are checking for.

 If there is a /var/lock/LCK..ttyUSB# file present, where # is a number,
 powerd inhibits suspend as expected.

 There is a lock check in powerd for "/var/lock/LCK..USB*".  But screen
 does not write a lock file in /var/lock, and neither does Minicom.

 The pppd daemon will write a lock file such like "LCK..ttyUSB0" - but in
 /var/lock/ppp/ , not just /var/lock.  The current check does not spot
 this.

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Ticket URL: <http://dev.laptop.org/ticket/11286#comment:14>
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