6dbe662874
Added CONFIG_SND_AC97_POWER_SAVE kernel config to enable the support of aggressive AC97 power-saving mode. In this mode, the AC97 powerdown register bits are dynamically controlled at each open/close of PCM streams. The mode is activated via power_save option for snd-ac97-codec driver. As default it's off. It can be turned on/off on the fly via sysfs, too. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
117 lines
2.9 KiB
Plaintext
117 lines
2.9 KiB
Plaintext
# ALSA generic drivers
|
|
|
|
menu "Generic devices"
|
|
depends on SND!=n
|
|
|
|
|
|
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 SND_HWDEP
|
|
select SND_PCM
|
|
|
|
config SND_AC97_CODEC
|
|
tristate
|
|
select SND_PCM
|
|
select SND_AC97_BUS
|
|
|
|
config SND_AC97_BUS
|
|
tristate
|
|
|
|
|
|
config SND_DUMMY
|
|
tristate "Dummy (/dev/null) soundcard"
|
|
depends on SND
|
|
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_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"
|
|
depends on SND
|
|
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_SERIAL_U16550
|
|
tristate "UART16550 serial MIDI driver"
|
|
depends on SND
|
|
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"
|
|
depends on SND
|
|
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_AC97_POWER_SAVE
|
|
bool "AC97 Power-Saving Mode"
|
|
depends on SND_AC97_CODEC && EXPERIMENTAL
|
|
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=1 option to
|
|
snd-ac97-codec driver. You can toggle it dynamically over
|
|
sysfs, too.
|
|
|
|
endmenu
|