tree 3d14dc057dc809795573df076d1fb396ed39e081
parent e61fc94b9b6d4ccba60cca9ac0e0a67539f18780
author Nick Kralevich <nnk@google.com> 1434154752 -0700
committer Nick Kralevich <nnk@google.com> 1434154885 -0700

UsbDeviceManager: Modify default function handling

When adb is enabled, there's no need to also enable MTP mode.
ADB mode enabled is sufficient to get connect messages from
the kernel driver.

This change modifies getDefaultFunctions() to return adb mode
if adb is enabled, but mtp when it's not enabled. Also stop
using "none" mode as the default. "none" should only be used
when toggling the driver.

Bug: 21429947
Change-Id: I767491417c6c69a120fcf4f3d6ec0c73311a1a60