It took a while but now l can connect to wiced wifi through /dev/ttyUSB1.
First you need to install ftdi drivers in linux. Search for libftdi1.
apt-get install libftdi1
Then, you need to install the driver:
modprobe ftdi_sio
The "vendor" and "product" option does not work anymore, don't bother to use them. This is where I got stuck. New kernel have a different way of specifying vendor and product.
Instead, use:
echo 0a5c 43fa > /sys/bus/usb-serial/drivers/ftdi_sio/new_id
Now, /dev/ttyUSB1 device should be available. You can connect using minicom:
minicom -D /dev/ttyUSB1 -s
Make sure hardware or software flow control is "off".
My /etc/udev/rules.d/67-wiced-JTAG.rules looks like:
# udev rules file for WICED USB JTAG interface, to allow use by non super-users
SUBSYSTEM=="usb", ATTR{idVendor}=="0a5c", ATTR{idProduct}=="43fa", GROUP="emre", MODE="0666"
SUBSYSTEM=="usb-serial", DRIVERS=="ftdi_sio"
