Cannot unlock device /dev/ttyS0

I am using Gnokii to send alert that is done through a Mobile phone connected to the Linux server through USB cable, and I used “port = /dev/ttyS0” under gnokii setting.

It work for some time and stops with showing below error message

[root@monitor#] gnokii --identify
GNOKII Version 0.6.19
Telephone interface init failed: Command timed out.
Quitting.
Cannot unlock device.
Command timed out.


to make this work again, server has to restart or disconnect and connect Nokia phone again

Do you know what does this error means, and how to solve?

this is really an argent matter.

thanks
uknet80Asked:
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Duncan RoeConnect With a Mentor Software DeveloperCommented:
In your Gnokii Setting you have debug = off and I was suggesting you change that to debug = on.
Do you have the file /etc/syslog.conf? If you do, I strongly recommend you add the following lines to it
# Everything is logged here.
*.debug                                         -/var/log/debug

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Remove any existing lines referring to /var/log/debug. After you do that, and issue the command pkill -HUP syslogd to get the file re-read, you will see in all USB connect and disconnect activity in /var/log/debug.
If you don't have /etc/syslog.conf then your system uses some other logging program which I can't help you with. Hopefully you can work out what to do.
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Chris SandriniConnect With a Mentor Senior System EngineerCommented:
Hi

What does your messages log file tell you when you connect your device? /var/log/messages. Also it would be good to know what Linux you are using.
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uknet80Author Commented:
Log file doesn't show any thing, after it crush, I will even double check that for you.
But dmesg shows this:

cdc_acm 4-2:1.1: ttyACM0: USB ACM device

After I restarted the server it works and i get following message from "gnokii --identify"
[root@monitor ~]# gnokii --identify
GNOKII Version 0.6.19
IMEI         : 352042021632084
Manufacturer : Nokia
Model        : Nokia 6300
Product name : Nokia 6300
Revision     : V 05.50


After an hour it will crash and the message mentioned earlier appear.

Gnokii Setting:
[global]
#port = /dev/ttyS0
port = /dev/ttyACM0
model = AT
initlength = default
connection = serial
use_locking = no
serial_baudrate = 19200
smsc_timeout = 10
allow_breakage = 0
[gnokiid]
bindir = /usr/local/sbin/
[connect_script]
TELEPHONE = 12345678
[disconnect_script]
[logging]
debug = off
rlpdebug = off
xdebug = off



The version I am using is:
Linux is: RHEL5.7
Gnokii Version: GNOKII Version 0.6.19
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Duncan RoeConnect With a Mentor Software DeveloperCommented:
Note you are using /dev/ttyACM0 rather than /dev/ttyS0. This USB serial port may disappear if the USB connection is broken at which point it can be difficult for an application to unlock it.
You really need to increase logging so you can see what the USB device does. You could start by turning it on in your config above.
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uknet80Author Commented:
can you please explain to me what I need to do, I didn't understand:

You really need to increase logging so you can see what the USB device does. You could start by turning it on in your config above.
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uknet80Author Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for uknet80's comment #a38878985
Assisted answer: 167 points for un1x86's comment #a38833909
Assisted answer: 167 points for duncan_roe's comment #a38846087
Assisted answer: 166 points for duncan_roe's comment #a38879302

for the following reason:

thanks for your continues supports
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uknet80Author Commented:
thanks for your support.
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