USB Interface II & Linux

All,

I've had some success in using the USB Interface II with my Acer Aspire One netbook with Ubuntu 9.04 using fldigi. I'm still having a problem with initialization of the interface. If I initialize it with the microHAM router from an instance of XP in a virtualbox, I'm able to then close down XP, start the fldigi app, and have successful communications to and through the interface. If I try it without starting the microHAM router under XP it fails to pass data. Without initialization, I can see the data going to the interface, but the interface doesn't respond and doesn't pass any data. It looks as though some initialization needs to flow to the interface before it starts allowing communications with the radio. Does anyone have any information on the initialization data for the USB Interface II?

Thanks in advance,
Bill
N6WS

Interesting...

Maybe you could use the 'tee' command to split off the data stream to the serial device so you could observe it (or send it to a log file for analysis). I'm not sure that 'tee' is ideal, but it's perhaps a good starting point.

Here's something to pick the bones out of:
<http://www.usenet-forums.com/linux-general/89089-two-applications-listening-one-serial-port.html>

This one's a bit more specific:
<http://www.linuxquestions.org/questions/linux-software-2/serial-port-spy-452667/>

This one's specially for this purpose:
http://linux.die.net/man/1/slsnif

This might also help, but I haven't bothered trawling through it:
<http://kerneltrap.org/mailarchive/openbsd-misc/2008/10/30/3862384>

After you have captured the startup sequence it is trivial to replay it before you start fldigi. Even if the startup sequence is a little more complex, it would be quite easy write a very simple program or script to interact with the device before handing control over to fldigi.

Actually, once you've got it working you could pass on your findings to the fldigi developers.

Of course, I could be wrong.

Of course, you could ask the manufacturer.

73,

Andrew
ZL3AME