This option enables the Greybus driver core. Greybus is an
hardware protocol that was designed to provide Unipro with a
sane application layer. It was originally designed for the
ARA project, a module phone system, but has shown up in other
phones, and can be tunneled over other busses in order to
control hardware devices.

Say Y here to enable support for these types of drivers.

To compile this code as a module, chose M here: the module
will be called greybus.ko

source code:

drivers/staging/greybus/