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Diffstat (limited to 'kernel/sound/core/Kconfig')
| -rw-r--r-- | kernel/sound/core/Kconfig | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/kernel/sound/core/Kconfig b/kernel/sound/core/Kconfig new file mode 100644 index 000000000..313f22e9d --- /dev/null +++ b/kernel/sound/core/Kconfig @@ -0,0 +1,231 @@ +# ALSA soundcard-configuration +config SND_TIMER + tristate + +config SND_PCM + tristate + select SND_TIMER + +config SND_DMAENGINE_PCM + tristate + +config SND_HWDEP + tristate + +config SND_RAWMIDI + tristate + +config SND_COMPRESS_OFFLOAD + tristate + +# To be effective this also requires INPUT - users should say: +# select SND_JACK if INPUT=y || INPUT=SND +# to avoid having to force INPUT on. +config SND_JACK + bool + +config SND_SEQUENCER + tristate "Sequencer support" + select SND_TIMER + help + Say Y or M to enable MIDI sequencer and router support. This + feature allows routing and enqueueing of MIDI events. Events + can be processed at a given time. + + Many programs require this feature, so you should enable it + unless you know what you're doing. + +config SND_SEQ_DUMMY + tristate "Sequencer dummy client" + depends on SND_SEQUENCER + help + Say Y here to enable the dummy sequencer client. This client + is a simple MIDI-through client: all normal input events are + redirected to the output port immediately. + + You don't need this unless you want to connect many MIDI + devices or applications together. + + To compile this driver as a module, choose M here: the module + will be called snd-seq-dummy. + +config SND_OSSEMUL + select SOUND_OSS_CORE + bool + +config SND_MIXER_OSS + tristate "OSS Mixer API" + select SND_OSSEMUL + help + To enable OSS mixer API emulation (/dev/mixer*), say Y here + and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. + + Many programs still use the OSS API, so say Y. + + To compile this driver as a module, choose M here: the module + will be called snd-mixer-oss. + +config SND_PCM_OSS + tristate "OSS PCM (digital audio) API" + select SND_OSSEMUL + select SND_PCM + help + To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y + here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. + + Many programs still use the OSS API, so say Y. + + To compile this driver as a module, choose M here: the module + will be called snd-pcm-oss. + +config SND_PCM_OSS_PLUGINS + bool "OSS PCM (digital audio) API - Include plugin system" + depends on SND_PCM_OSS + default y + help + If you disable this option, the ALSA's OSS PCM API will not + support conversion of channels, formats and rates. It will + behave like most of new OSS/Free drivers in 2.4/2.6 kernels. + +config SND_SEQUENCER_OSS + bool "OSS Sequencer API" + depends on SND_SEQUENCER + select SND_OSSEMUL + help + Say Y here to enable OSS sequencer emulation (both + /dev/sequencer and /dev/music interfaces). + + Many programs still use the OSS API, so say Y. + + If you choose M in "Sequencer support" (SND_SEQUENCER), + this will be compiled as a module. The module will be called + snd-seq-oss. + +config SND_HRTIMER + tristate "HR-timer backend support" + depends on HIGH_RES_TIMERS + select SND_TIMER + help + Say Y here to enable HR-timer backend for ALSA timer. ALSA uses + the hrtimer as a precise timing source. The ALSA sequencer code + also can use this timing source. + + To compile this driver as a module, choose M here: the module + will be called snd-hrtimer. + +config SND_SEQ_HRTIMER_DEFAULT + bool "Use HR-timer as default sequencer timer" + depends on SND_HRTIMER && SND_SEQUENCER + default y + help + Say Y here to use the HR-timer backend as the default sequencer + timer. + +config SND_RTCTIMER + tristate "RTC Timer support" + depends on RTC + select SND_TIMER + help + Say Y here to enable RTC timer support for ALSA. ALSA uses + the RTC timer as a precise timing source and maps the RTC + timer to ALSA's timer interface. The ALSA sequencer code also + can use this timing source. + + To compile this driver as a module, choose M here: the module + will be called snd-rtctimer. + + Note that this option is exclusive with the new RTC drivers + (CONFIG_RTC_CLASS) since this requires the old API. + +config SND_SEQ_RTCTIMER_DEFAULT + bool "Use RTC as default sequencer timer" + depends on SND_RTCTIMER && SND_SEQUENCER + depends on !SND_SEQ_HRTIMER_DEFAULT + default y + help + Say Y here to use the RTC timer as the default sequencer + timer. This is strongly recommended because it ensures + precise MIDI timing even when the system timer runs at less + than 1000 Hz. + + If in doubt, say Y. + +config SND_DYNAMIC_MINORS + bool "Dynamic device file minor numbers" + help + If you say Y here, the minor numbers of ALSA device files in + /dev/snd/ are allocated dynamically. This allows you to have + more than 8 sound cards, but requires a dynamic device file + system like udev. + + If you are unsure about this, say N here. + +config SND_MAX_CARDS + int "Max number of sound cards" + range 4 256 + default 32 + depends on SND_DYNAMIC_MINORS + help + Specify the max number of sound cards that can be assigned + on a single machine. + +config SND_SUPPORT_OLD_API + bool "Support old ALSA API" + default y + help + Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 + or older). + +config SND_VERBOSE_PROCFS + bool "Verbose procfs contents" + depends on PROC_FS + default y + help + Say Y here to include code for verbose procfs contents (provides + useful information to developers when a problem occurs). On the + other side, it makes the ALSA subsystem larger. + +config SND_VERBOSE_PRINTK + bool "Verbose printk" + help + Say Y here to enable verbose log messages. These messages + will help to identify source file and position containing + printed messages. + + You don't need this unless you're debugging ALSA. + +config SND_DEBUG + bool "Debug" + help + Say Y here to enable ALSA debug code. + +config SND_DEBUG_VERBOSE + bool "More verbose debug" + depends on SND_DEBUG + help + Say Y here to enable extra-verbose debugging messages. + + Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages. + So, say Y only if you are ready to be annoyed. + +config SND_PCM_XRUN_DEBUG + bool "Enable PCM ring buffer overrun/underrun debugging" + default n + depends on SND_DEBUG && SND_VERBOSE_PROCFS + help + Say Y to enable the PCM ring buffer overrun/underrun debugging. + It is usually not required, but if you have trouble with + sound clicking when system is loaded, it may help to determine + the process or driver which causes the scheduling gaps. + +config SND_VMASTER + bool + +config SND_KCTL_JACK + bool + +config SND_DMA_SGBUF + def_bool y + depends on X86 + +source "sound/core/seq/Kconfig" |