Template:FAQ/Questions/bluetooth and usbnet started

Why are bluetooth and usbnet started, but not ethernet, for configurations with either etherstix or a netstix board?
It's because of what happens if you try to bring up eth0 but you don't have an etherstix attached — the ethernet driver reconfigures GPIO49, which is alternately used by the HWUART and the compact flash driver.

If you load the ethernet driver regardless of whether you have an etherstix (or netstix) connected to the gumstix, then you preclude use of those other functions for a much wider range of people.