188 lines
12 KiB
Plaintext
188 lines
12 KiB
Plaintext
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# This file is part of PulseAudio.
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#
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# PulseAudio is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 2.1 of the
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# License, or (at your option) any later version.
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#
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# PulseAudio is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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; Common part of all paths
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; So here's generally how mixer paths are used by PA: PA goes through
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; a mixer path file from top to bottom and checks if a mixer element
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; described therein exists. If so it is added to the list of mixer
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; elements PA will control, keeping the order it read them in. If a
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; mixer element described here has set the required= or
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; required-absent= directives a path might not be accepted as valid
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; and is ignored in its entirety (see below). However usually if a
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; element listed here is missing this one element is ignored but not
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; the entire path.
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;
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; When a device shall be muted/unmuted *all* elements listed in a path
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; file with "switch = mute" will be toggled.
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;
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; When a device shall change its volume, PA will got through the list
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; of all elements with "volume = merge" and set the volume on the
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; first element. If that element does not support dB volumes, this is
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; where the story ends. If it does support dB volumes, PA divides the
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; requested volume by the volume that was set on this element, and
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; then go on to the next element with "volume = merge" and then set
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; that there, and so on. That way the first volume element in the
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; path will be the one that does the 'biggest' part of the overall
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; volume adjustment, with the remaining elements usually being set to
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; some value next to 0dB. This logic makes sure we get the full range
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; over all volume sliders and a very high granularity of volumes
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; already in hardware.
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;
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; All switches and enumerations set to "select" are exposed via the
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; "port" functionality of sinks/sources. Basically every possible
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; switch setting and every possible enumeration setting will be
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; combined and made into a "port". So make sure you don't list too
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; many switches/enums for exposing, because the number of ports might
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; rise exponentially.
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;
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; Only one path can be selected at a time. All paths that are valid
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; for an audio device will be exposed as "port" for the sink/source.
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; [General]
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; type = ... # The device type. It's highly recommended to set a type for every path.
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; # See parse_type() in alsa-mixer.c for supported values.
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; priority = ... # Priority for this path
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; description-key = ... # The path description is looked up from a table in path_verify() in
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; # src/modules/alsa/alsa-mixer.c. By default the path name (i.e. the file name
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; # minus the ".conf" suffix) is used as the lookup key, but if this option is
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; # set, then the given string is used as the key instead. In any case the
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; # "description" option can be used to override the path description.
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; description = ... # Description for this path. Overrides the normal description lookup logic, as
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; # described in the "description-key" documentation above.
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; mute-during-activation = yes | no # If this path supports hardware mute, should the hw mute be used while activating this
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; # path? In some cases this can reduce extra noises during port switching, while in other
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; # cases this can increase such noises. Default: no.
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; eld-device = ... # If this is an HDMI port, set to "auto" so that PulseAudio will try to read
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; # the monitor ELD information from the ALSA mixer. By default the ELD information
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; # is not read, because it's only applicable with HDMI. Earlier the "auto" option
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; # didn't exist, and the hw device index had to be manually configured. For
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; # backwards compatibility, it's still possible to manually configure the device
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; # index using this option.
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;
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; [Properties] # Property list for this path. The list is merged into the port property list.
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; <key> = <value> # Each property is defined on its own line.
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; ...
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;
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; [Option ...:...] # For each option of an enumeration or switch element
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; # that shall be exposed as a sink/source port. Needs to
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; # be named after the Element, followed by a colon, followed
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; # by the option name, resp. on/off if the element is a switch.
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; name = ... # Logical name to use in the path identifier
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; priority = ... # Priority if this is made into a device port
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; required = ignore | enumeration | any # In this element, this option must exist or the path will be invalid. ("any" is an alias for "enumeration".)
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; required-any = ignore | enumeration | any # In this element, either this or another option must exist (or an element)
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; required-absent = ignore | enumeration | any # In this element, this option must not exist or the path will be invalid
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;
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; [Element ...] # For each element that we shall control. The "..." here is the element name,
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; # or name and index separated by a comma.
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; required = ignore | switch | volume | enumeration | any # If set, require this element to be of this kind and available,
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; # otherwise don't consider this path valid for the card
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; required-any = ignore | switch | volume | enumeration | any # If set, at least one of the elements or jacks with required-any in this
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; # path must be present, otherwise this path is invalid for the card
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; required-absent = ignore | switch | volume # If set, require this element to not be of this kind and not
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; # available, otherwise don't consider this path valid for the card
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;
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; switch = ignore | mute | off | on | select # What to do with this switch: ignore it, make it follow mute status,
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; # always set it to off, always to on, or make it selectable as port.
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; # If set to 'select' you need to define an Option section for on
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; # and off
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; volume = ignore | merge | off | zero | <volume step> # What to do with this volume: ignore it, merge it into the device
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; # volume slider, always set it to the lowest value possible, or always
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; # set it to 0 dB (for whatever that means), or always set it to
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; # <volume step> (this only makes sense in path configurations where
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; # the exact hardware and driver are known beforehand).
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; volume-limit = <volume step> # Limit the maximum volume by disabling the volume steps above <volume step>.
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; enumeration = ignore | select # What to do with this enumeration, ignore it or make it selectable
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; # via device ports. If set to 'select' you need to define an Option section
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; # for each of the items you want to expose
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; direction = playback | capture # Is this relevant only for playback or capture? If not set this will implicitly be
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; # set the direction of the PCM device is opened as. Generally this doesn't need to be set
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; # unless you have a broken driver that has playback controls marked for capture or vice
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; # versa
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; direction-try-other = no | yes # If the element does not supported what is requested, try the other direction, too?
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;
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; override-map.1 = ... # Override the channel mask of the mixer control if the control only exposes a single channel
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; override-map.2 = ... # Override the channel masks of the mixer control if the control only exposes two channels
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; # Override maps should list for each element channel which high-level channels it controls via a
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; # channel mask. A channel mask may either be the name of a single channel, or the words "all-left",
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; # "all-right", "all-center", "all-front", "all-rear", and "all" to encode a specific subset of
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; # channels in a mask
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; [Jack ...] # For each jack that we will use for jack detection
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; # The name 'Jack Foo' must match ALSA's 'Foo Jack' control.
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; required = ignore | any # If not set to ignore, make the path invalid if this jack control is not present.
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; required-absent = ignore | any # If not set to ignore, make the path invalid if this jack control is present.
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; required-any = ignore | any # If not set to ignore, make the path invalid if no jack controls and no elements with
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; # the required-any are present.
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; state.plugged = yes | no | unknown # Normally a plugged jack would mean the port becomes available, and an unplugged means it's
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; state.unplugged = yes | no | unknown # unavailable, but the port status can be overridden by specifying state.plugged and/or state.unplugged.
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; append-pcm-to-name = no | yes # Add ",pcm=N" to the jack name? N is the hw PCM device index. HDMI jacks have
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; # the PCM device index in their name, but different drivers use different
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; # numbering schemes, so we can't hardcode the full jack name in our configuration
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; # files.
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[Element PCM]
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switch = mute
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volume = ignore
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volume-limit = 0.007
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override-map.1 = all
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override-map.2 = all-left,all-right
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[Element External Amplifier]
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switch = select
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[Option External Amplifier:on]
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name = output-amplifier-on
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priority = 10
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[Option External Amplifier:off]
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name = output-amplifier-off
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priority = 0
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[Element Bass Boost]
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switch = select
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[Option Bass Boost:on]
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name = output-bass-boost-on
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priority = 0
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[Option Bass Boost:off]
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name = output-bass-boost-off
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priority = 10
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[Element IEC958]
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switch = off
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[Element IEC958 Optical Raw]
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switch = off
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;;; 'Analog Output'
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[Element Analog Output]
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enumeration = select
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[Option Analog Output:Speakers]
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name = output-speaker
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priority = 10
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[Option Analog Output:Headphones]
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name = output-headphones
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priority = 9
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[Option Analog Output:FP Headphones]
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name = output-headphones
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priority = 8
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