I have used a Linaro Ubuntu Image [see: https://wiki.linaro.org/Cycles/MilestoneBuilds] for my Gumstix OS on a Gumstix Fire interfaced with a Tobi Board. I would like to access UART1&2 on the board. Currently I get "Input/output error" if I try to write or read from my ttyS* ports. What is the best way to solve this issue?

Uriah Baalke
Mechanical Engineering
University of Pennsylvania Class of 2011
Cell: 267.253.1581
Email: uriahjb@gmail.com