Openmoko Bug #2257: gsm0710muxd: "Modem does not respond to AT commands"

Openmoko Public Trac bugs at
Tue Apr 28 02:41:12 CEST 2009

#2257: gsm0710muxd: "Modem does not respond to AT commands"
 Reporter:  lindi            |          Owner:  openmoko-kernel     
     Type:  defect           |         Status:  new                 
 Priority:  high             |      Milestone:  stable-kernel-2009.1
Component:  System Software  |        Version:  unspecified         
 Severity:  major            |       Keywords:                      
 Haspatch:  0                |      Blockedby:                      
Estimated:                   |    Patchreview:                      
 Blocking:                   |   Reproducible:  sometimes           

Comment(by arhuaco):

 I've been testing andy-tracking and gsm0710muxd is working well for me. I
 noticed it resets the modem when it starts.

 I'm sorry to say I was confused by an instance of gsm0710muxd running in
 the background :-/

 Do not forget to run "fuser /dev/ttySAC0" before making tests to check
 that no program is using this port.

 I'll attach the output of strace. It seems to be working well here (I also
 tested with gsm0710muxd).

 Are you still hitting this problem?

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