• [Feb 28th 2012] Info for OS X 10.7
OS X 10.7 - Lion

  1. Download and install osx-pl2303-0.4.1-failberg.pkg from failberg's github project
    (you will need to reboot)
  2. Login to Apple Developer Center - developer.apple.com/downloads/index.action
  3. Download and Install command_line_tools_for_xcode_.dmg
  4. Install Homebrew
    /usr/bin/ruby -e "$(curl -fsSL https://raw.github.com/gist/323731)"
  5. Install minicom
    brew install minicom

OS X 10.6 - Snow Leopard

  1. Install MacPorts for your version of OS X
    (1.8.2 - Snow Leopard at the time of this writing)
    Download and open the dmg. Run the pkg.

    sudo port -v selfupdate

  2. Install the USB to Serial Adapter
    (0.3.1 marked for 10.4, tested working with 10.6)
  3. Ignore the request to restart as well as the modem which appears in network connections
  4. Install and configure minicom

    sudo port install minicom # lrzsz for file xfer will also be installed
    ls /dev/cu. # should reveal /dev/cu.PL2303-0000101D or similar
    sudo minicom -s

    > Serial Port Setup
      Device: /dev/cu.PL2303-0000101D

    >Modem and Dialing
      Init string: [empty string]
      Reset string: [empty string]
      Hang-up string: [empty string]

    > Save the setup as default ("dfl")

    > Exit

  5. To exit use
    [CTRL-A], [Z], [X]
  6. To connect again

    sudo minicom

Key Words

Prolific USB to Serial PL2303
Prolific Serial to USB PL2303
OS X Tiger 10.4, OS X Leopard 10.5, OS X Snow Leopard 10.6, OS X Lion 10.7, OS X Mountain Lion 10.8
Thank's for posting this, worked like a charm for me on my MacBook Pro with snow leopard .

By AJ ONeal

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