[Bug 256] New: GSM Modem doesn't seem to work on some devices

bugzilla-daemon at bugzilla.openmoko.org bugzilla-daemon at bugzilla.openmoko.org
Sun Mar 11 18:22:32 CET 2007


           Summary: GSM Modem doesn't seem to work on some devices
           Product: Neo1973 Hardware
           Version: GTA01Bv3
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: GSM Modem
        AssignedTo: sean_chiang at fic.com.tw
        ReportedBy: philipp.zabel at gmail.com

I followed the HOWTO at http://wiki.openmoko.org/wiki/Manually_using_GSM but
didn't succeed to communicate with the GSM modem:

root at fic-gta01:~$ lsof | grep ttySAC0
root at fic-gta01:~$ echo "1" > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root at fic-gta01:~$ dmesg | tail -n 1
<6>gta01-pm-gsm gta01-pm-gsm.0: powering up GSM, thus disconnecting serial console
root at fic-gta01:~$ chown uucp.uucp /dev/ttySAC0
root at fic-gta01:~$ cu -l /dev/ttySAC0

After this there is only silence. No "AT-Command Interpreter Ready" message and
no reaction to input. The device is S/N 000182 (Date code 20070207), the
software versions are


from http://buildhost.openmoko.org/tmp/deploy/images.

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