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linux-yocto/sound/Kconfig
Oleksandr Andrushchenko cc3196ae19 ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver 
Introduce skeleton of the para-virtualized Xen sound
frontend driver.

Initial handling for Xen bus states: implement
Xen bus state machine for the frontend driver according to
the state diagram and recovery flow from sound para-virtualized
protocol: xen/interface/io/sndif.h.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-16 12:58:36 +02:00

2.7 KiB
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menuconfig SOUND tristate "Sound card support" depends on HAS_IOMEM help If you have a sound card in your computer, i.e. if it can say more than an occasional beep, say Y.

if SOUND

config SOUND_OSS_CORE bool default n

config SOUND_OSS_CORE_PRECLAIM bool "Preclaim OSS device numbers" depends on SOUND_OSS_CORE default y help With this option enabled, the kernel will claim all OSS device numbers if any OSS support (native or emulation) is enabled whether the respective module is loaded or not and try to load the appropriate module using sound-slot/service-* and char-major-* module aliases when one of the device numbers is opened. With this option disabled, kernel will only claim actually in-use device numbers and opening a missing device will generate only the standard char-major-* aliases.

  The only visible difference is use of additional module aliases
  and whether OSS sound devices appear multiple times in
  /proc/devices.  sound-slot/service-* module aliases are scheduled
  to be removed (ie. PRECLAIM won't be available) and this option is
  to make the transition easier.  This option can be overridden
  during boot using the kernel parameter soundcore.preclaim_oss.

  Disabling this allows alternative OSS implementations.

  If unsure, say Y.

source "sound/oss/dmasound/Kconfig"

if !UML

menuconfig SND tristate "Advanced Linux Sound Architecture" help Say 'Y' or 'M' to enable ALSA (Advanced Linux Sound Architecture), the new base sound system.

  For more information, see <http://www.alsa-project.org/>

if SND

source "sound/core/Kconfig"

source "sound/drivers/Kconfig"

source "sound/isa/Kconfig"

source "sound/pci/Kconfig"

source "sound/hda/Kconfig"

source "sound/ppc/Kconfig"

source "sound/ac97/Kconfig"

source "sound/aoa/Kconfig"

source "sound/arm/Kconfig"

source "sound/atmel/Kconfig"

source "sound/spi/Kconfig"

source "sound/mips/Kconfig"

source "sound/sh/Kconfig"

the following will depend on the order of config.

here assuming USB is defined before ALSA

source "sound/usb/Kconfig"

source "sound/firewire/Kconfig"

the following will depend on the order of config.

here assuming PCMCIA is defined before ALSA

source "sound/pcmcia/Kconfig"

source "sound/sparc/Kconfig"

source "sound/parisc/Kconfig"

source "sound/soc/Kconfig"

source "sound/x86/Kconfig"

source "sound/synth/Kconfig"

source "sound/xen/Kconfig"

endif # SND

endif # !UML

endif # SOUND

AC97_BUS is used from both sound and ucb1400

config AC97_BUS tristate help This is used to avoid config and link hard dependencies between the sound subsystem and other function drivers completely unrelated to sound although they're sharing the AC97 bus. Concerned drivers should "select" this.