Okay, here goes the ftdi_sio module:
- http://alextgalileo.altervista.org/pkgrepo/clanton/kernel-module-ftdi-sio_3.8-r0_clanton.ipk
- or "opkg install kernel-module-ftdi-sio" (don't forget to enable the repo by following instructions here)
- or build the image after enabling the recipe in recipes-addfeatures/enable_ftdi_sio subdir of my repo
You'll need to load the usbserial and ftdi_sio modules manually using modprobe after you have them installed.
Try it out and let's see what you get after enabling these two modules and connecting your sensor.