This question is resolved in the list yet. I'd the same problem and reply me this:

"You must change the "/tmp/fifo_ser" file permissions in "ser.cfg" with "fifo_mode=0666". "

And now runs ok!!

Lol Zimmerli escribió:

Hello,

Llanos Serna García-Conde llanosserna@hotmail.com écrit/wrote:

...

But the problem is that this change in permissions is not permanent, and I would like to know if there's a way to permanently enable writing permission in ser_fifo.

Probably this: fifo="/tmp/ser_fifo" fifo_mode=0666

Bye