After spending an entire weekend I finally got my Flip32 (from readytoflyquads.com) working on my mac (Macbook Pro Retina 2014) running OS X 10.10.2.
-> The issue with the drivers on SILAB webpage is that they are not hosting the latest version that works with OS X 10.10, get the latest and greatest from here: http://community.silabs.com/mgrfq637…erDisk.dmg.zip
-> Download the driver, unzip, double click the dmg and install the package.
-> Restart Machine
-> Install Google Chrome and Baseflight.
-> Plug in usb cable to FC, then plug into mac, it should show up on port /dev/cu.SLAB_USBtoUART
-> Be Sure to flash your Flight controller with the latest firmware!
The reason that the driver on the SILAB page doesn’t work is that Apple now requires vendors to sign their drivers for additional security and the previous drivers cannot be installed/loaded because they don’t have valid developer signatures.
I hope this helps!