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When men were real men and typed their own AT commands...
Thankfully, this may now be partially obsolete. The dialer now works!
This is a short guide how to manually get GSM going.
Our default images all have a getty running on /dev/ttySAC0, please edit /etc/inittab and disable the getty on that port
NOTE: You don't need this in kernel builds with patchset ≥ 1288 |
To keep the kernel from writing to /dev/ttySAC0, you need to use dmesg -n1
.
root@fic-gta01:~$ lsof | grep ttySAC0
root@fic-gta01:~$ /etc/init.d/gsmd stop
root@fic-gta01:~$ echo "1" > /sys/bus/platform/devices/gta01-pm-gsm.0/power_on
root@fic-gta01:~$ socat - file:/dev/ttySAC0,crtscts,crnl AT-Command Interpreter ready
If you don't have socat, you can use cu, although it has problems with file permissions and hardware flow control.
root@fic-gta01:~$ chown uucp.uucp /dev/ttySAC0
root@fic-gta01:~$ mkdir -p /usr/spool/uucp root@fic-gta01:~$ chown uucp.uucp /usr/spool/uucp
root@fic-gta01:~$ stty -F /dev/ttySAC0 crtscts
root@fic-gta01:~$ cu -l /dev/ttySAC0 Connected. AT-Command Interpreter Ready OK
If it hangs on "Connected" message then probably your device has a non-working GSM modem - check Bug #256, also you may want to try powering off the modem then on again as this worked for me
cu seems to have problems with the hardware flow control. The one way I always managed to get GSM working is to start cu first and then on a different console issue the stty command. --DanielWillmann 01:15, 20 March 2007 (CET)
OK ~[fic-gta01]. Disconnected. root@fic-gta01:/$
ATE1 OK AT+CFUN=1 ERROR AT+CPIN="...." OK AT+COPS OK
This can take a few seconds to process but will list the available carriers
AT+COPS=?
RING ATA OK
To actually be able to talk you have to configure your audio accordingly
root@fic-gta01:~$ cd /etc/alsa/ root@fic-gta01:/etc/alsa$ wget http://opensource.wolfsonmicro.com/~gg/neo1973/gsmheadset.working.state root@fic-gta01:/etc/alsa$ alsactl -f /etc/alsa/gsmheadset.working.state restore
Up the "Amp right" volume to hear the speaker on both ears, then dial (note the ; at the end of the dial string, this signifies a voice call, if you omit the ; it is regarded as a data call).
ATD012340234;
If you get NO CARRIER, try...
ATD+xxyzzzzzzz
ie, ATD+<country_code><area_code><phone_number>
ATH OK
You can use the gsmd and libgsmd-tool programs to have a slightly more high-level interface to the GSM Modem. It's still console based, though.
For further instructions, see gsmd
Tui (available from sourceforge) is able to do all this. It is still text-based, but input-rxvt can take data from touchscreen, so you can actually do the calls using your finger. It also plays wav file on incoming call, so it is theoretically usable. It even does caller id.
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