Struct alsa::mixer::Selem

pub struct Selem<'a>(/* private fields */);

Wraps an Elem as a Selem

Implementations

impl<'a> Selem<'a>

pub fn new(elem: Elem<'a>) -> Option<Selem<'a>>

Creates a Selem by wrapping elem.

pub fn register(mixer: &mut Mixer) -> Result<()>

TODO: This function might change to support regopt and to return the mixer class

pub fn get_id(&self) -> SelemId

pub fn has_capture_volume(&self) -> bool

pub fn has_capture_switch(&self) -> bool

pub fn has_playback_volume(&self) -> bool

pub fn has_playback_switch(&self) -> bool

pub fn can_capture(&self) -> bool

pub fn can_playback(&self) -> bool

pub fn has_volume(&self) -> bool

pub fn get_capture_volume_range(&self) -> (i64, i64)

returns range for capture volume as (min, max) values

pub fn get_capture_db_range(&self) -> (MilliBel, MilliBel)

returns (min, max) values.

pub fn get_playback_volume_range(&self) -> (i64, i64)

returns (min, max) values.

pub fn get_playback_db_range(&self) -> (MilliBel, MilliBel)

returns (min, max) values.

pub fn is_capture_mono(&self) -> bool

pub fn is_playback_mono(&self) -> bool

pub fn has_capture_channel(&self, channel: SelemChannelId) -> bool

pub fn has_playback_channel(&self, channel: SelemChannelId) -> bool

pub fn channel_name(channel: SelemChannelId) -> Result<&'static str>

Gets name from snd_mixer_selem_channel_name

pub fn get_playback_volume(&self, channel: SelemChannelId) -> Result<i64>

pub fn get_playback_vol_db(&self, channel: SelemChannelId) -> Result<MilliBel>

returns volume in millibels.

pub fn ask_playback_vol_db(&self, volume: i64) -> Result<MilliBel>

Asks alsa to convert playback volume to millibels.

pub fn ask_playback_db_vol(&self, db: MilliBel, dir: Round) -> Result<i64>

pub fn get_capture_volume(&self, channel: SelemChannelId) -> Result<i64>

pub fn get_capture_vol_db(&self, channel: SelemChannelId) -> Result<MilliBel>

returns volume in millibels.

pub fn ask_capture_vol_db(&self, volume: i64) -> Result<MilliBel>

Asks alsa to convert capture volume to millibels

pub fn ask_capture_db_vol(&self, db: MilliBel, dir: Round) -> Result<i64>

pub fn set_playback_volume( &self, channel: SelemChannelId, value: i64 ) -> Result<()>

pub fn set_playback_volume_range(&self, min: i64, max: i64) -> Result<()>

pub fn set_playback_volume_all(&self, value: i64) -> Result<()>

pub fn set_playback_db( &self, channel: SelemChannelId, value: MilliBel, dir: Round ) -> Result<()>

pub fn set_capture_db( &self, channel: SelemChannelId, value: MilliBel, dir: Round ) -> Result<()>

pub fn set_playback_db_all(&self, value: MilliBel, dir: Round) -> Result<()>

pub fn set_capture_db_all(&self, value: MilliBel, dir: Round) -> Result<()>

pub fn set_capture_volume( &self, channel: SelemChannelId, value: i64 ) -> Result<()>

pub fn set_capture_volume_range(&self, min: i64, max: i64) -> Result<()>

pub fn set_capture_volume_all(&self, value: i64) -> Result<()>

pub fn set_playback_switch( &self, channel: SelemChannelId, value: i32 ) -> Result<()>

pub fn set_playback_switch_all(&self, value: i32) -> Result<()>

pub fn set_capture_switch( &self, channel: SelemChannelId, value: i32 ) -> Result<()>

pub fn set_capture_switch_all(&self, value: i32) -> Result<()>

pub fn get_playback_switch(&self, channel: SelemChannelId) -> Result<i32>

pub fn get_capture_switch(&self, channel: SelemChannelId) -> Result<i32>

pub fn is_enumerated(&self) -> bool

pub fn is_enum_playback(&self) -> bool

pub fn is_enum_capture(&self) -> bool

pub fn get_enum_items(&self) -> Result<u32>

pub fn get_enum_item_name(&self, idx: u32) -> Result<String>

pub fn iter_enum(&self) -> Result<IterEnum<'_>>

Enumerates over valid Enum values

pub fn get_enum_item(&self, channel: SelemChannelId) -> Result<u32>

pub fn set_enum_item(&self, channel: SelemChannelId, idx: u32) -> Result<()>

Trait Implementations

impl<'a> Deref for Selem<'a>

fn deref(&self) -> &Elem<'a>

returns the elem of this selem

type Target = Elem<'a>

The resulting type after dereferencing.