Openmoko Bug #1380: GSM modem sleeps on virtual channels in MUX

Openmoko Public Trac bugs at
Wed Feb 18 02:13:31 CET 2009

#1380: GSM modem sleeps on virtual channels in MUX
    Reporter:  mickey@…             |        Owner:  sean_chiang@…           
        Type:  defect               |       Status:  closed                  
    Priority:  high                 |    Milestone:                          
   Component:  GSM Modem            |      Version:  GTA02v5                 
    Severity:  normal               |   Resolution:  wontfix                 
    Keywords:                       |     Haspatch:  0                       
   Blockedby:                       |    Estimated:                          
 Patchreview:                       |     Blocking:                          
Reproducible:                       |  
Changes (by mickey):

  * haspatch:  => 0


 And even more for the records, although probably no one is reading this
 anymore... my analysis was wrong, it doesn't sleep on the virtual
 channels, it sleeps in multiplexing mode and needs to be sent a full frame
 (not just flag characters) to be woken up correctly. With regards to the
 original problem, it's no longer a problem at all, since you can even wake
 it up properly on mux layer (which is what fso-abyss does) and no longer
 have to care on the AT layer.

 Case closed :)

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