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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: virtuoso: Xonar DS: fix polarity of front output ALSA: Au88x0 - Reduce the number of playback subdevices of au8830 from 32 to 16 ALSA: Au88x0 - Support 4 channels playback when AC97 codecs has SDAC bit ALSA: HDA: Fix internal microphone on Dell Studio 16 XPS 1645 ALSA: Don't prompt for CONFIG_SND_COMPRESS_OFFLOAD ALSA: HDA: Use LPIB position fix for Macbook Pro 7,1
220 lines
6.0 KiB
Plaintext
220 lines
6.0 KiB
Plaintext
# ALSA soundcard-configuration
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config SND_TIMER
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tristate
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config SND_PCM
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tristate
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select SND_TIMER
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config SND_HWDEP
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tristate
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config SND_RAWMIDI
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tristate
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config SND_COMPRESS_OFFLOAD
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tristate
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# To be effective this also requires INPUT - users should say:
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# select SND_JACK if INPUT=y || INPUT=SND
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# to avoid having to force INPUT on.
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config SND_JACK
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bool
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config SND_SEQUENCER
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tristate "Sequencer support"
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select SND_TIMER
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help
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Say Y or M to enable MIDI sequencer and router support. This
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feature allows routing and enqueueing of MIDI events. Events
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can be processed at a given time.
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Many programs require this feature, so you should enable it
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unless you know what you're doing.
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config SND_SEQ_DUMMY
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tristate "Sequencer dummy client"
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depends on SND_SEQUENCER
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help
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Say Y here to enable the dummy sequencer client. This client
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is a simple MIDI-through client: all normal input events are
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redirected to the output port immediately.
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You don't need this unless you want to connect many MIDI
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devices or applications together.
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To compile this driver as a module, choose M here: the module
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will be called snd-seq-dummy.
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config SND_OSSEMUL
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select SOUND_OSS_CORE
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bool
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config SND_MIXER_OSS
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tristate "OSS Mixer API"
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select SND_OSSEMUL
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help
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To enable OSS mixer API emulation (/dev/mixer*), say Y here
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and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
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Many programs still use the OSS API, so say Y.
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To compile this driver as a module, choose M here: the module
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will be called snd-mixer-oss.
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config SND_PCM_OSS
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tristate "OSS PCM (digital audio) API"
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select SND_OSSEMUL
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select SND_PCM
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help
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To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y
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here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
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Many programs still use the OSS API, so say Y.
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To compile this driver as a module, choose M here: the module
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will be called snd-pcm-oss.
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config SND_PCM_OSS_PLUGINS
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bool "OSS PCM (digital audio) API - Include plugin system"
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depends on SND_PCM_OSS
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default y
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help
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If you disable this option, the ALSA's OSS PCM API will not
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support conversion of channels, formats and rates. It will
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behave like most of new OSS/Free drivers in 2.4/2.6 kernels.
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config SND_SEQUENCER_OSS
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bool "OSS Sequencer API"
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depends on SND_SEQUENCER
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select SND_OSSEMUL
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help
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Say Y here to enable OSS sequencer emulation (both
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/dev/sequencer and /dev/music interfaces).
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Many programs still use the OSS API, so say Y.
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If you choose M in "Sequencer support" (SND_SEQUENCER),
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this will be compiled as a module. The module will be called
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snd-seq-oss.
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config SND_HRTIMER
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tristate "HR-timer backend support"
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depends on HIGH_RES_TIMERS
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select SND_TIMER
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help
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Say Y here to enable HR-timer backend for ALSA timer. ALSA uses
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the hrtimer as a precise timing source. The ALSA sequencer code
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also can use this timing source.
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To compile this driver as a module, choose M here: the module
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will be called snd-hrtimer.
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config SND_SEQ_HRTIMER_DEFAULT
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bool "Use HR-timer as default sequencer timer"
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depends on SND_HRTIMER && SND_SEQUENCER
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default y
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help
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Say Y here to use the HR-timer backend as the default sequencer
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timer.
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config SND_RTCTIMER
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tristate "RTC Timer support"
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depends on RTC
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select SND_TIMER
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help
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Say Y here to enable RTC timer support for ALSA. ALSA uses
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the RTC timer as a precise timing source and maps the RTC
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timer to ALSA's timer interface. The ALSA sequencer code also
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can use this timing source.
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To compile this driver as a module, choose M here: the module
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will be called snd-rtctimer.
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Note that this option is exclusive with the new RTC drivers
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(CONFIG_RTC_CLASS) since this requires the old API.
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config SND_SEQ_RTCTIMER_DEFAULT
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bool "Use RTC as default sequencer timer"
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depends on SND_RTCTIMER && SND_SEQUENCER
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depends on !SND_SEQ_HRTIMER_DEFAULT
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default y
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help
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Say Y here to use the RTC timer as the default sequencer
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timer. This is strongly recommended because it ensures
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precise MIDI timing even when the system timer runs at less
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than 1000 Hz.
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If in doubt, say Y.
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config SND_DYNAMIC_MINORS
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bool "Dynamic device file minor numbers"
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help
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If you say Y here, the minor numbers of ALSA device files in
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/dev/snd/ are allocated dynamically. This allows you to have
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more than 8 sound cards, but requires a dynamic device file
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system like udev.
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If you are unsure about this, say N here.
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config SND_SUPPORT_OLD_API
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bool "Support old ALSA API"
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default y
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help
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Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
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or older).
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config SND_VERBOSE_PROCFS
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bool "Verbose procfs contents"
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depends on PROC_FS
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default y
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help
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Say Y here to include code for verbose procfs contents (provides
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useful information to developers when a problem occurs). On the
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other side, it makes the ALSA subsystem larger.
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config SND_VERBOSE_PRINTK
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bool "Verbose printk"
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help
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Say Y here to enable verbose log messages. These messages
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will help to identify source file and position containing
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printed messages.
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You don't need this unless you're debugging ALSA.
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config SND_DEBUG
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bool "Debug"
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help
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Say Y here to enable ALSA debug code.
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config SND_DEBUG_VERBOSE
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bool "More verbose debug"
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depends on SND_DEBUG
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help
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Say Y here to enable extra-verbose debugging messages.
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Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages.
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So, say Y only if you are ready to be annoyed.
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config SND_PCM_XRUN_DEBUG
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bool "Enable PCM ring buffer overrun/underrun debugging"
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default n
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depends on SND_DEBUG && SND_VERBOSE_PROCFS
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help
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Say Y to enable the PCM ring buffer overrun/underrun debugging.
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It is usually not required, but if you have trouble with
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sound clicking when system is loaded, it may help to determine
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the process or driver which causes the scheduling gaps.
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config SND_VMASTER
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bool
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config SND_KCTL_JACK
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bool
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config SND_DMA_SGBUF
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def_bool y
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depends on X86
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source "sound/core/seq/Kconfig"
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