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Linux/sound/drivers/Kconfig

  1 config SND_MPU401_UART
  2         tristate
  3         select SND_RAWMIDI
  4 
  5 config SND_OPL3_LIB
  6         tristate
  7         select SND_TIMER
  8         select SND_HWDEP
  9 
 10 config SND_OPL4_LIB
 11         tristate
 12         select SND_TIMER
 13         select SND_HWDEP
 14 
 15 config SND_VX_LIB
 16         tristate
 17         select FW_LOADER
 18         select SND_HWDEP
 19         select SND_PCM
 20 
 21 config SND_AC97_CODEC
 22         tristate
 23         select SND_PCM
 24         select AC97_BUS
 25         select SND_VMASTER
 26 
 27 menuconfig SND_DRIVERS
 28         bool "Generic sound devices"
 29         default y
 30         help
 31           Support for generic sound devices.
 32   
 33 if SND_DRIVERS
 34 
 35 config SND_PCSP
 36         tristate "PC-Speaker support (READ HELP!)"
 37         depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
 38         depends on INPUT
 39         select SND_PCM
 40         help
 41           If you don't have a sound card in your computer, you can include a
 42           driver for the PC speaker which allows it to act like a primitive
 43           sound card.
 44           This driver also replaces the pcspkr driver for beeps.
 45 
 46           You can compile this as a module which will be called snd-pcsp.
 47 
 48           WARNING: if you already have a soundcard, enabling this
 49           driver may lead to a problem. Namely, it may get loaded
 50           before the other sound driver of yours, making the
 51           pc-speaker a default sound device. Which is likely not
 52           what you want. To make this driver play nicely with other
 53           sound driver, you can add this in a configuration file under
 54           /etc/modprobe.d/ directory:
 55           options snd-pcsp index=2
 56 
 57           You don't need this driver if you only want your pc-speaker to beep.
 58           You don't need this driver if you have a tablet piezo beeper
 59           in your PC instead of the real speaker.
 60 
 61           Say N if you have a sound card.
 62           Say M if you don't.
 63           Say Y only if you really know what you do.
 64 
 65 config SND_DUMMY
 66         tristate "Dummy (/dev/null) soundcard"
 67         select SND_PCM
 68         help
 69           Say Y here to include the dummy driver.  This driver does
 70           nothing, but emulates various mixer controls and PCM devices.
 71 
 72           You don't need this unless you're testing the hardware support
 73           of programs using the ALSA API.
 74 
 75           To compile this driver as a module, choose M here: the module
 76           will be called snd-dummy.
 77 
 78 config SND_ALOOP
 79         tristate "Generic loopback driver (PCM)"
 80         select SND_PCM
 81         help
 82           Say 'Y' or 'M' to include support for the PCM loopback device.
 83           This module returns played samples back to the user space using
 84           the standard ALSA PCM device. The devices are routed 0->1 and
 85           1->0, where first number is the playback PCM device and second
 86           number is the capture device. Module creates two PCM devices and
 87           configured number of substreams (see the pcm_substreams module
 88           parameter).
 89 
 90           The loopback device allows time sychronization with an external
 91           timing source using the time shift universal control (+-20%
 92           of system time).
 93 
 94           To compile this driver as a module, choose M here: the module
 95           will be called snd-aloop.
 96 
 97 config SND_VIRMIDI
 98         tristate "Virtual MIDI soundcard"
 99         depends on SND_SEQUENCER
100         select SND_TIMER
101         select SND_RAWMIDI
102         help
103           Say Y here to include the virtual MIDI driver.  This driver
104           allows to connect applications using raw MIDI devices to
105           sequencer clients.
106 
107           If you don't know what MIDI is, say N here.
108 
109           To compile this driver as a module, choose M here: the module
110           will be called snd-virmidi.
111 
112 config SND_MTPAV
113         tristate "MOTU MidiTimePiece AV multiport MIDI"
114         select SND_RAWMIDI
115         help
116           To use a MOTU MidiTimePiece AV multiport MIDI adapter
117           connected to the parallel port, say Y here and make sure that
118           the standard parallel port driver isn't used for the port.
119 
120           To compile this driver as a module, choose M here: the module
121           will be called snd-mtpav.
122 
123 config SND_MTS64
124         tristate "ESI Miditerminal 4140 driver"
125         depends on PARPORT
126         select SND_RAWMIDI
127         help
128           The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with 
129           additional SMPTE Timecode capabilities for the parallel port.
130 
131           Say 'Y' to include support for this device.
132 
133           To compile this driver as a module, chose 'M' here: the module 
134           will be called snd-mts64.
135 
136 config SND_SERIAL_U16550
137         tristate "UART16550 serial MIDI driver"
138         select SND_RAWMIDI
139         help
140           To include support for MIDI serial port interfaces, say Y here
141           and read <file:Documentation/sound/alsa/serial-u16550.txt>.
142           This driver works with serial UARTs 16550 and better.
143 
144           This driver accesses the serial port hardware directly, so
145           make sure that the standard serial driver isn't used or
146           deactivated with setserial before loading this driver.
147 
148           To compile this driver as a module, choose M here: the module
149           will be called snd-serial-u16550.
150 
151 config SND_MPU401
152         tristate "Generic MPU-401 UART driver"
153         select SND_MPU401_UART
154         help
155           Say Y here to include support for MIDI ports compatible with
156           the Roland MPU-401 interface in UART mode.
157 
158           To compile this driver as a module, choose M here: the module
159           will be called snd-mpu401.
160 
161 config SND_PORTMAN2X4
162         tristate "Portman 2x4 driver"
163         depends on PARPORT
164         select SND_RAWMIDI
165         help
166           Say Y here to include support for Midiman Portman 2x4 parallel
167           port MIDI device.
168 
169           To compile this driver as a module, choose M here: the module
170           will be called snd-portman2x4.
171 
172 config SND_ML403_AC97CR
173         tristate "Xilinx ML403 AC97 Controller Reference"
174         depends on XILINX_VIRTEX
175         select SND_AC97_CODEC
176         help
177           Say Y here to include support for the
178           opb_ac97_controller_ref_v1_00_a ip core found in Xilinx's ML403
179           reference design.
180 
181           To compile this driver as a module, choose M here: the module
182           will be called snd-ml403_ac97cr.
183 
184 config SND_AC97_POWER_SAVE
185         bool "AC97 Power-Saving Mode"
186         depends on SND_AC97_CODEC
187         default n
188         help
189           Say Y here to enable the aggressive power-saving support of
190           AC97 codecs.  In this mode, the power-mode is dynamically
191           controlled at each open/close.
192 
193           The mode is activated by passing 'power_save=X' to the
194           snd-ac97-codec driver module, where 'X' is the time-out
195           value, a nonnegative integer that specifies how many
196           seconds of idle time the driver must count before it may
197           put the AC97 into power-save mode;  a value of 0 (zero)
198           disables the use of this power-save mode.
199 
200           After the snd-ac97-codec driver module has been loaded,
201           the 'power_save' parameter can be set via sysfs as follows:
202 
203             echo 10 > /sys/module/snd_ac97_codec/parameters/power_save
204 
205           In this case, the time-out is set to 10 seconds; setting
206           the time-out to 1 second (the minimum activation value)
207           isn't recommended because many applications try to reopen
208           the device frequently.  A value of 10 seconds would be a
209           good choice for normal operations.
210 
211           See Documentation/sound/alsa/powersave.txt for more details.
212 
213 config SND_AC97_POWER_SAVE_DEFAULT
214         int "Default time-out for AC97 power-save mode"
215         depends on SND_AC97_POWER_SAVE
216         default 0
217         help
218           The default time-out value in seconds for AC97 automatic
219           power-save mode.  0 means to disable the power-save mode.
220 
221           See SND_AC97_POWER_SAVE for more details.
222 
223 endif   # SND_DRIVERS

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