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Old 17th October 2007, 03:11 PM
khachane.chetan Offline
Registered User
Join Date: Oct 2007
Posts: 1
Fargo Maetro GSM Modem on Serial Port

we are java research students.
we are working on sms based project, we have one issue of sending sms on fedora 7 with fargo maestro 20 gsm modem.Our Modem is connected to Serial Port.

We are newbies in Linux & having average knowlegde of java, j2me...

We have installed sun java in the linux box..then comm.jar api.
the deployment of the .so & java.comm jar is done as per requirement

our application is based on the following code:

we have complied java files...then we have written the shell file for running the java class file.

public class DemoSms
public static void main(String args[])
SMSClient sc = new SMSClient(1);

//ends here

#shell file


$JAVA_HOME/bin/java -cp $CLASSPATH DemoSms

#shell file ends here

Console message errors we get are as follows

[root@TEST ~]# sh SmsSend.sh
PortId = javax.comm.CommPortIdentifier@173a10f
java.io.IOException: Not all params are supported by kernel
at com.sun.comm.LinuxSerial.nativeSetSerialPortParams (Native Method)
at com.sun.comm.LinuxSerial.setSerialPortParams(Linux Serial.java:346)
at SerialConnection.setConnectionParameters(SerialCon nection.java:167)
at SerialConnection.openConnection(SerialConnection.j ava:100)
at Sender.send(Sender.java:44)
at SMSClient.run(SMSClient.java:39)
at java.lang.Thread.run(Thread.java:595)

[1]+ Stopped sh SmsSend.sh
[root@TEST ~]# sh SmsSend.sh
PortId = javax.comm.CommPortIdentifier@173a10f

Error opening "/dev/ttyS0"
lockf(): Resource temporarily unavailable
at com.sun.comm.LinuxDriver.getCommPort(LinuxDriver.j ava:66)
at javax.comm.CommPortIdentifier.open(CommPortIdentif ier.java:369)
at SerialConnection.openConnection(SerialConnection.j ava:89)
at Sender.send(Sender.java:44)
at SMSClient.run(SMSClient.java:39)
at java.lang.Thread.run(Thread.java:595)


As we are newbies we are not able to trace where the actual problem is...
We have used this modem in windows env and it runs perfectly..

We have tried configuring minicom also to try to send sms but we have failed in doing so..
We have already put around 20 hours trying to find the error but with no use..
Your help is very much appreciated...

Please help!!!..*

Last edited by khachane.chetan; 17th October 2007 at 03:18 PM.
Old 26th October 2007, 08:57 AM
Posts: n/a
Finally we got our solution....
We were very disappointed with the luke response we got from this forum...
No solution!! No Leads!!!...
Any way we are posting back this solution so that in future people don't reach a deadlock...

Our problem was resolve by using IBM Linux Comm jar files & using their instructions...

None of the suggested solutions we searched in the net gave us the solution..be it RXTX or Sun Java Comm...

RXTX was crashing JVM..some "Hot Spot" error...
Sun Comm Comm component...
Old 26th October 2007, 09:03 AM
Posts: n/a
Wait a minute. Are you two friends asking the same question or one person logging in as two users and asking the same question? Either way, I'm closing one of these threads as duplicate posts are not allowed.

Probably the lukewarm response was because no one knows anything about the hardware in question.

Closed Thread

fargo, gsm, maetro, modem, port, serial

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