sound/drivers/Kconfig - kernel/msm-4.9 - Gitiles

 config SND_MPU401_UART
         tristate
         select SND_RAWMIDI

 config SND_OPL3_LIB
 	tristate
 	select SND_TIMER
 	select SND_HWDEP

 config SND_OPL4_LIB
 	tristate
 	select SND_TIMER
 	select SND_HWDEP

 config SND_VX_LIB
 	tristate
 	select FW_LOADER
 	select SND_HWDEP
 	select SND_PCM

 config SND_AC97_CODEC
 	tristate
 	select SND_PCM
 	select AC97_BUS
 	select SND_VMASTER

 menuconfig SND_DRIVERS
 	bool "Generic sound devices"
 	default y
 	help
 	  Support for generic sound devices.

 if SND_DRIVERS

 config SND_PCSP
 	tristate "PC-Speaker support (READ HELP!)"
 	depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
 	depends on INPUT
 	select SND_PCM
 	help
 	  If you don't have a sound card in your computer, you can include a
 	  driver for the PC speaker which allows it to act like a primitive
 	  sound card.
 	  This driver also replaces the pcspkr driver for beeps.

 	  You can compile this as a module which will be called snd-pcsp.

 	  WARNING: if you already have a soundcard, enabling this
 	  driver may lead to a problem. Namely, it may get loaded
 	  before the other sound driver of yours, making the
 	  pc-speaker a default sound device. Which is likely not
 	  what you want. To make this driver play nicely with other
 	  sound driver, you can add this in a configuration file under
 	  /etc/modprobe.d/ directory:
 	  options snd-pcsp index=2

 	  You don't need this driver if you only want your pc-speaker to beep.
 	  You don't need this driver if you have a tablet piezo beeper
 	  in your PC instead of the real speaker.

 	  Say N if you have a sound card.
 	  Say M if you don't.
 	  Say Y only if you really know what you do.

 config SND_DUMMY
 	tristate "Dummy (/dev/null) soundcard"
 	select SND_PCM
 	help
 	  Say Y here to include the dummy driver.  This driver does
 	  nothing, but emulates various mixer controls and PCM devices.

 	  You don't need this unless you're testing the hardware support
 	  of programs using the ALSA API.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-dummy.

 config SND_ALOOP
         tristate "Generic loopback driver (PCM)"
         select SND_PCM
         help
           Say 'Y' or 'M' to include support for the PCM loopback device.
 	  This module returns played samples back to the user space using
 	  the standard ALSA PCM device. The devices are routed 0->1 and
           1->0, where first number is the playback PCM device and second
 	  number is the capture device. Module creates two PCM devices and
 	  configured number of substreams (see the pcm_substreams module
           parameter).

 	  The loopback device allows time sychronization with an external
 	  timing source using the time shift universal control (+-20%
 	  of system time).

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-aloop.

 config SND_VIRMIDI
 	tristate "Virtual MIDI soundcard"
 	depends on SND_SEQUENCER
 	select SND_TIMER
 	select SND_RAWMIDI
 	help
 	  Say Y here to include the virtual MIDI driver.  This driver
 	  allows to connect applications using raw MIDI devices to
 	  sequencer clients.

 	  If you don't know what MIDI is, say N here.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-virmidi.

 config SND_MTPAV
 	tristate "MOTU MidiTimePiece AV multiport MIDI"
 	select SND_RAWMIDI
 	help
 	  To use a MOTU MidiTimePiece AV multiport MIDI adapter
 	  connected to the parallel port, say Y here and make sure that
 	  the standard parallel port driver isn't used for the port.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-mtpav.

 config SND_MTS64
 	tristate "ESI Miditerminal 4140 driver"
 	depends on PARPORT
 	select SND_RAWMIDI
 	help
 	  The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
           additional SMPTE Timecode capabilities for the parallel port.

 	  Say 'Y' to include support for this device.

 	  To compile this driver as a module, chose 'M' here: the module
           will be called snd-mts64.

 config SND_SERIAL_U16550
 	tristate "UART16550 serial MIDI driver"
 	select SND_RAWMIDI
 	help
 	  To include support for MIDI serial port interfaces, say Y here
 	  and read <file:Documentation/sound/alsa/serial-u16550.txt>.
 	  This driver works with serial UARTs 16550 and better.

 	  This driver accesses the serial port hardware directly, so
 	  make sure that the standard serial driver isn't used or
 	  deactivated with setserial before loading this driver.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-serial-u16550.

 config SND_MPU401
 	tristate "Generic MPU-401 UART driver"
 	select SND_MPU401_UART
 	help
 	  Say Y here to include support for MIDI ports compatible with
 	  the Roland MPU-401 interface in UART mode.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-mpu401.

 config SND_PORTMAN2X4
 	tristate "Portman 2x4 driver"
 	depends on PARPORT
 	select SND_RAWMIDI
 	help
 	  Say Y here to include support for Midiman Portman 2x4 parallel
 	  port MIDI device.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-portman2x4.

 config SND_ML403_AC97CR
 	tristate "Xilinx ML403 AC97 Controller Reference"
 	depends on XILINX_VIRTEX
 	select SND_AC97_CODEC
 	help
 	  Say Y here to include support for the
 	  opb_ac97_controller_ref_v1_00_a ip core found in Xilinx's ML403
 	  reference design.

 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-ml403_ac97cr.

 config SND_AC97_POWER_SAVE
 	bool "AC97 Power-Saving Mode"
 	depends on SND_AC97_CODEC
 	default n
 	help
 	  Say Y here to enable the aggressive power-saving support of
 	  AC97 codecs.  In this mode, the power-mode is dynamically
 	  controlled at each open/close.

 	  The mode is activated by passing 'power_save=X' to the
 	  snd-ac97-codec driver module, where 'X' is the time-out
 	  value, a nonnegative integer that specifies how many
 	  seconds of idle time the driver must count before it may
 	  put the AC97 into power-save mode;  a value of 0 (zero)
 	  disables the use of this power-save mode.

 	  After the snd-ac97-codec driver module has been loaded,
 	  the 'power_save' parameter can be set via sysfs as follows:

 	    echo 10 > /sys/module/snd_ac97_codec/parameters/power_save

 	  In this case, the time-out is set to 10 seconds; setting
 	  the time-out to 1 second (the minimum activation value)
 	  isn't recommended because many applications try to reopen
 	  the device frequently.  A value of 10 seconds would be a
 	  good choice for normal operations.

 	  See Documentation/sound/alsa/powersave.txt for more details.

 config SND_AC97_POWER_SAVE_DEFAULT
 	int "Default time-out for AC97 power-save mode"
 	depends on SND_AC97_POWER_SAVE
 	default 0
 	help
 	  The default time-out value in seconds for AC97 automatic
 	  power-save mode.  0 means to disable the power-save mode.

 	  See SND_AC97_POWER_SAVE for more details.

 endif	# SND_DRIVERS
	config SND_MPU401_UART
	tristate
	select SND_RAWMIDI

	config SND_OPL3_LIB
	tristate
	select SND_TIMER
	select SND_HWDEP

	config SND_OPL4_LIB
	tristate
	select SND_TIMER
	select SND_HWDEP

	config SND_VX_LIB
	tristate
	select FW_LOADER
	select SND_HWDEP
	select SND_PCM

	config SND_AC97_CODEC
	tristate
	select SND_PCM
	select AC97_BUS
	select SND_VMASTER

	menuconfig SND_DRIVERS
	bool "Generic sound devices"
	default y
	help
	Support for generic sound devices.

	if SND_DRIVERS

	config SND_PCSP
	tristate "PC-Speaker support (READ HELP!)"
	depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
	depends on INPUT
	select SND_PCM
	help
	If you don't have a sound card in your computer, you can include a
	driver for the PC speaker which allows it to act like a primitive
	sound card.
	This driver also replaces the pcspkr driver for beeps.

	You can compile this as a module which will be called snd-pcsp.

	WARNING: if you already have a soundcard, enabling this
	driver may lead to a problem. Namely, it may get loaded
	before the other sound driver of yours, making the
	pc-speaker a default sound device. Which is likely not
	what you want. To make this driver play nicely with other
	sound driver, you can add this in a configuration file under
	/etc/modprobe.d/ directory:
	options snd-pcsp index=2

	You don't need this driver if you only want your pc-speaker to beep.
	You don't need this driver if you have a tablet piezo beeper
	in your PC instead of the real speaker.

	Say N if you have a sound card.
	Say M if you don't.
	Say Y only if you really know what you do.

	config SND_DUMMY
	tristate "Dummy (/dev/null) soundcard"
	select SND_PCM
	help
	Say Y here to include the dummy driver. This driver does
	nothing, but emulates various mixer controls and PCM devices.

	You don't need this unless you're testing the hardware support
	of programs using the ALSA API.

	To compile this driver as a module, choose M here: the module
	will be called snd-dummy.

	config SND_ALOOP
	tristate "Generic loopback driver (PCM)"
	select SND_PCM
	help
	Say 'Y' or 'M' to include support for the PCM loopback device.
	This module returns played samples back to the user space using
	the standard ALSA PCM device. The devices are routed 0->1 and
	1->0, where first number is the playback PCM device and second
	number is the capture device. Module creates two PCM devices and
	configured number of substreams (see the pcm_substreams module
	parameter).

	The loopback device allows time sychronization with an external
	timing source using the time shift universal control (+-20%
	of system time).

	To compile this driver as a module, choose M here: the module
	will be called snd-aloop.

	config SND_VIRMIDI
	tristate "Virtual MIDI soundcard"
	depends on SND_SEQUENCER
	select SND_TIMER
	select SND_RAWMIDI
	help
	Say Y here to include the virtual MIDI driver. This driver
	allows to connect applications using raw MIDI devices to
	sequencer clients.

	If you don't know what MIDI is, say N here.

	To compile this driver as a module, choose M here: the module
	will be called snd-virmidi.

	config SND_MTPAV
	tristate "MOTU MidiTimePiece AV multiport MIDI"
	select SND_RAWMIDI
	help
	To use a MOTU MidiTimePiece AV multiport MIDI adapter
	connected to the parallel port, say Y here and make sure that
	the standard parallel port driver isn't used for the port.

	To compile this driver as a module, choose M here: the module
	will be called snd-mtpav.

	config SND_MTS64
	tristate "ESI Miditerminal 4140 driver"
	depends on PARPORT
	select SND_RAWMIDI
	help
	The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
	additional SMPTE Timecode capabilities for the parallel port.

	Say 'Y' to include support for this device.

	To compile this driver as a module, chose 'M' here: the module
	will be called snd-mts64.

	config SND_SERIAL_U16550
	tristate "UART16550 serial MIDI driver"
	select SND_RAWMIDI
	help
	To include support for MIDI serial port interfaces, say Y here
	and read <file:Documentation/sound/alsa/serial-u16550.txt>.
	This driver works with serial UARTs 16550 and better.

	This driver accesses the serial port hardware directly, so
	make sure that the standard serial driver isn't used or
	deactivated with setserial before loading this driver.

	To compile this driver as a module, choose M here: the module
	will be called snd-serial-u16550.

	config SND_MPU401
	tristate "Generic MPU-401 UART driver"
	select SND_MPU401_UART
	help
	Say Y here to include support for MIDI ports compatible with
	the Roland MPU-401 interface in UART mode.

	To compile this driver as a module, choose M here: the module
	will be called snd-mpu401.

	config SND_PORTMAN2X4
	tristate "Portman 2x4 driver"
	depends on PARPORT
	select SND_RAWMIDI
	help
	Say Y here to include support for Midiman Portman 2x4 parallel
	port MIDI device.

	To compile this driver as a module, choose M here: the module
	will be called snd-portman2x4.

	config SND_ML403_AC97CR
	tristate "Xilinx ML403 AC97 Controller Reference"
	depends on XILINX_VIRTEX
	select SND_AC97_CODEC
	help
	Say Y here to include support for the
	opb_ac97_controller_ref_v1_00_a ip core found in Xilinx's ML403
	reference design.

	To compile this driver as a module, choose M here: the module
	will be called snd-ml403_ac97cr.

	config SND_AC97_POWER_SAVE
	bool "AC97 Power-Saving Mode"
	depends on SND_AC97_CODEC
	default n
	help
	Say Y here to enable the aggressive power-saving support of
	AC97 codecs. In this mode, the power-mode is dynamically
	controlled at each open/close.

	The mode is activated by passing 'power_save=X' to the
	snd-ac97-codec driver module, where 'X' is the time-out
	value, a nonnegative integer that specifies how many
	seconds of idle time the driver must count before it may
	put the AC97 into power-save mode; a value of 0 (zero)
	disables the use of this power-save mode.

	After the snd-ac97-codec driver module has been loaded,
	the 'power_save' parameter can be set via sysfs as follows:

	echo 10 > /sys/module/snd_ac97_codec/parameters/power_save

	In this case, the time-out is set to 10 seconds; setting
	the time-out to 1 second (the minimum activation value)
	isn't recommended because many applications try to reopen
	the device frequently. A value of 10 seconds would be a
	good choice for normal operations.

	See Documentation/sound/alsa/powersave.txt for more details.

	config SND_AC97_POWER_SAVE_DEFAULT
	int "Default time-out for AC97 power-save mode"
	depends on SND_AC97_POWER_SAVE
	default 0
	help
	The default time-out value in seconds for AC97 automatic
	power-save mode. 0 means to disable the power-save mode.

	See SND_AC97_POWER_SAVE for more details.

	endif # SND_DRIVERS