[alsa-devel] [RFC][PATCH 0/4] ALSA: control: return payload length of TLV operation

[Takashi Sakamoto]

Hi,

ALSA control interface has a feature named TLV. This is originally designed
to transfer information about threshold level. Later, it's used for I/O
operation.

In current implementation of this feature, length of handled data is not
returned to applications. This is not better as a feature related to I/O.

This patchset attempts to improve this feature so that the length is
returned to application in a 'length' field of tlv packet structure
(struct snd_ctl_tlv).

Takashi Sakamoto (4):
  ALSA: control: return payload length for TLV operation
  ALSA: control: delegate checking the length of data payload to each
    drivers
  ALSA: control: add kerneldoc for snd_kcontrol_tlv_rw_t
  ALSA: control: bump up protocol version to 2.0.8

 include/sound/control.h      | 22 ++++++++++++++++++++--
 include/sound/soc.h          |  2 +-
 include/uapi/sound/asound.h  |  2 +-
 sound/core/control.c         | 30 +++++++++++++++++++-----------
 sound/core/pcm_lib.c         | 15 ++++++++-------
 sound/core/vmaster.c         |  2 +-
 sound/hda/hdmi_chmap.c       | 16 +++++++++-------
 sound/pci/hda/hda_codec.c    | 12 ++++++++----
 sound/pci/hda/hda_local.h    |  4 ++--
 sound/pci/hda/patch_ca0132.c |  2 +-
 sound/pci/lola/lola_mixer.c  |  7 +++++--
 sound/soc/soc-ops.c          |  9 +++++----
 sound/usb/mixer.c            |  7 +++++--
 sound/usb/mixer.h            |  2 +-
 sound/usb/stream.c           | 13 ++++++++-----
 15 files changed, 94 insertions(+), 51 deletions(-)

-- 
2.7.4