[beagleboard] Enabling SPI pins on BB-xM and writing to them

Hi Al,

With my images it is not enabled by default.. You need to add
"buddy=spidev" to the top of uEnv.txt (in the boot partition) to tell
the kernel to enable those spi pins..


There's a good blog post on this:

Just ignore the older ubuntu demo image and the kernel patches, as
this is now already taken care of via "buddy=spidev"..