[alsa-devel] [RFC][PATCH 0/3] ALSA: fireface: new driver for RME Fireface series (MIDI only)

[Takashi Sakamoto]

Hi,

This patchset is to add a new driver for RME Fireface series. This is still
working in progress but currently the new driver support MIDI functionality.

Unfortunately, ffado library can disturb this functionality.
In RME::Device::init_hardware() function, the library sends a write transaction
to 0x0000801003f4 with invalid value as higher part of address in IEEE 1212 or
ISO/IEC 13213. This is a worst case I describe in patch 03.

A workaround is to load this module after running ffado library. This module
sends write transactions with valid values and regain MIDI functionality.

I think it better that FFADO developers fixes the bug as long as they doesn't
support MIDI functionality.

Takashi Sakamoto (3):
  fireface: add skeleton for RME Fireface series
  fireface: add transaction support
  fireface: add support for MIDI functionality

 sound/firewire/Kconfig                         |   7 +
 sound/firewire/Makefile                        |   1 +
 sound/firewire/fireface/Makefile               |   2 +
 sound/firewire/fireface/fireface-midi.c        | 129 ++++++++
 sound/firewire/fireface/fireface-transaction.c | 388 +++++++++++++++++++++++++
 sound/firewire/fireface/fireface.c             | 151 ++++++++++
 sound/firewire/fireface/fireface.h             |  73 +++++
 7 files changed, 751 insertions(+)
 create mode 100644 sound/firewire/fireface/Makefile
 create mode 100644 sound/firewire/fireface/fireface-midi.c
 create mode 100644 sound/firewire/fireface/fireface-transaction.c
 create mode 100644 sound/firewire/fireface/fireface.c
 create mode 100644 sound/firewire/fireface/fireface.h

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2.5.0