tree ad7f453999f8387077c40251355781e0d15cb4d1
parent 34b064a1406ebb2eb10b5b1f24c845891748c238
author Mike Lockwood <lockwood@google.com> 1418334260 -0800
committer Mike Lockwood <lockwood@google.com> 1421283114 -0800

MidiManager updates:

MIDI ports are now implemented as file descriptors directly between the sender
and receiver, so the MidiService is no longer in the message path.

To facilitate the above, each port has its own file descriptor, rather than multiplexing
all ports on a device through a single socket.

Added a new class MidiDeviceServer, which is used by implementors of MIDI devices.
This replaces the MidiVirtualDevice class (which only was included in changes that were reviewed but never submitted).

The USB MIDI implementation has moved from the MIDI service to the USB service.
The USB MIDI implementation uses MidiDeviceServer as its interface, so we now have a common
interface for all MIDI device implementations.

Change-Id: I8effd1583f344beb6c940c3a24dbf20b477a6436