[alsa-devel] [RFC PATCH v3 1/3] ALSA: hda - add DP mst verb support

[Takashi Iwai]

On Thu, 13 Oct 2016 09:49:35 +0200,
libin.yang at linux.intel.com wrote:
> 
> From: Libin Yang <libin.yang at linux.intel.com>
> 
> Add snd_hda_get_dev_select() and snd_hda_set_dev_select() functions
> for DP MST audio support.
> 
> Signed-off-by: Libin Yang <libin.yang at linux.intel.com>
> ---
>  sound/pci/hda/hda_codec.c | 73 ++++++++++++++++++++++++++++++++++++++++++++---
>  sound/pci/hda/hda_codec.h |  3 ++
>  2 files changed, 72 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
> index 9913be8..caa2c9d 100644
> --- a/sound/pci/hda/hda_codec.c
> +++ b/sound/pci/hda/hda_codec.c
> @@ -311,9 +311,16 @@ int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
>  }
>  EXPORT_SYMBOL_GPL(snd_hda_get_conn_index);
>  
> -
> -/* return DEVLIST_LEN parameter of the given widget */
> -static unsigned int get_num_devices(struct hda_codec *codec, hda_nid_t nid)
> +/**
> + * snd_hda_get_num_devices - get DEVLIST_LEN parameter of the given widget
> + *  @codec: the HDA codec
> + *  @nid: NID of the pin to parse
> + *
> + * Get the device entry number on the given widget.
> + * This is a feature of DP MST audio. Each pin can
> + * have several device entries in it.

Try to fill more letters aligned in 80 columns, as we don't need to
write a Haiku here.


Takashi