Well looky here. Took them a while but there is a native Intel driver for the GUC232A USB to Serial dongle! Since I decided to rebuild my MacBook I needed to get the serial dongle working again. Figured I'd check the IOGear website and the driver is there. I installed the DMG, rebooted and it's working perfectly! No fiddling with anything to get it to work.
Also, instead of messing with a shell script I just added an alias to my bashrc. "cc" (Cisco Console of course) now opens the unix app "screen" and points it at the IOGear tty. Works great! Much simpler than before.
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