Surely someone has done this before. I need to communicate from java to/from the Z\'s serial port.
========= installation ==============
I\'ve installed
http://s88074083.onlinehome.us/Zaurus/java...api_1.0_arm.ipkThis resulted in the following files in /home/QtPalmtop
java/comm.jar
java/jcl.jar
lib/libSerial.so
javax.comm.properties
Note that my LD_LIBRARY_PATH environmental variable is set to
/home/QtPalmtop/lib
I expect the calling sequence to be
SerialDemo --] comm.jar --] jcl.jar --] libSerial.so --] /dev/ttyS0
I manually performed the following configuration:
1) added user zaurus to the uucp line in /etc/group
2) chmod 777 /dev/ttyS0
3) chmod 777 /var
I got a font error and resolved it by adding this symbolic link:
mkdir -p /usr/local/qt-embedded/lib
cd /usr/local/qt-embedded/lib
ln -s /home/QtPalmtop/lib/fonts fonts
I built this demo
http://s88074083.onlinehome.us/Zaurus/java...-SerialDemo.zip========== evm problems ============
With evm, I still get errors:
x=/home/QtPalmtop/java
evm -Dcomm.enable -cp .:$x/comm.jar:$x/jcl.jar SerialDemo
14 1082109100
RXTX WARNING: This library requires the user running applications to be in
group uucp. Please consult the INSTALL documentation. More information is
avaiable under the topic \'How can I use Lock Files with rxtx?\'
check_lock_status: No permission to create lock file.
======= cvm problems ==========
With cvm, the application loads but I don\'t see any com ports:
cvm -Dcomm.enable -Djava.class.path=.:$x/comm.jar:$x/jcl.jar SerialDemo
========== Source code explorations =============
In the SerialDemo.java, search for
Enumeration en = CommPortIdentifier.getPortIdentifiers();
This appears to be returning an empty enumeration.
Note that I can rename the libSerial.so to a dummy name and the application DOES NOT complain. So, I don\'t think something is configured correctly.
If anyone knows what I\'m doing wrong, please let me know!
Thanks in advance, Jeff
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