1 # SPDX-License-Identifier: GPL-2.0-only
10 select SND_SEQ_DEVICE if SND_SEQUENCER != n
16 select SND_SEQ_DEVICE if SND_SEQUENCER != n
18 # select SEQ stuff to min(SND_SEQUENCER,SND_XXX)
19 config SND_OPL3_LIB_SEQ
20 def_tristate SND_SEQUENCER && SND_OPL3_LIB
21 select SND_SEQ_MIDI_EMUL
22 select SND_SEQ_MIDI_EVENT
24 config SND_OPL4_LIB_SEQ
25 def_tristate SND_SEQUENCER && SND_OPL4_LIB
26 select SND_SEQ_MIDI_EMUL
27 select SND_SEQ_MIDI_EVENT
41 menuconfig SND_DRIVERS
42 bool "Generic sound devices"
45 Support for generic sound devices.
50 tristate "PC-Speaker support (READ HELP!)"
51 depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
55 If you don't have a sound card in your computer, you can include a
56 driver for the PC speaker which allows it to act like a primitive
58 This driver also replaces the pcspkr driver for beeps.
60 You can compile this as a module which will be called snd-pcsp.
62 WARNING: if you already have a soundcard, enabling this
63 driver may lead to a problem. Namely, it may get loaded
64 before the other sound driver of yours, making the
65 pc-speaker a default sound device. Which is likely not
66 what you want. To make this driver play nicely with other
67 sound driver, you can add this in a configuration file under
68 /etc/modprobe.d/ directory:
69 options snd-pcsp index=2
71 You don't need this driver if you only want your pc-speaker to beep.
72 You don't need this driver if you have a tablet piezo beeper
73 in your PC instead of the real speaker.
75 Say N if you have a sound card.
77 Say Y only if you really know what you do.
80 tristate "Dummy (/dev/null) soundcard"
83 Say Y here to include the dummy driver. This driver does
84 nothing, but emulates various mixer controls and PCM devices.
86 You don't need this unless you're testing the hardware support
87 of programs using the ALSA API.
89 To compile this driver as a module, choose M here: the module
90 will be called snd-dummy.
93 tristate "Generic loopback driver (PCM)"
96 Say 'Y' or 'M' to include support for the PCM loopback device.
97 This module returns played samples back to the user space using
98 the standard ALSA PCM device. The devices are routed 0->1 and
99 1->0, where first number is the playback PCM device and second
100 number is the capture device. Module creates two PCM devices and
101 configured number of substreams (see the pcm_substreams module
104 The loopback device allows time sychronization with an external
105 timing source using the time shift universal control (+-20%
108 To compile this driver as a module, choose M here: the module
109 will be called snd-aloop.
112 tristate "Virtual MIDI soundcard"
113 depends on SND_SEQUENCER
116 select SND_SEQ_VIRMIDI
117 select SND_SEQ_MIDI_EVENT
119 Say Y here to include the virtual MIDI driver. This driver
120 allows to connect applications using raw MIDI devices to
123 If you don't know what MIDI is, say N here.
125 To compile this driver as a module, choose M here: the module
126 will be called snd-virmidi.
129 tristate "MOTU MidiTimePiece AV multiport MIDI"
132 To use a MOTU MidiTimePiece AV multiport MIDI adapter
133 connected to the parallel port, say Y here and make sure that
134 the standard parallel port driver isn't used for the port.
136 To compile this driver as a module, choose M here: the module
137 will be called snd-mtpav.
140 tristate "ESI Miditerminal 4140 driver"
144 The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
145 additional SMPTE Timecode capabilities for the parallel port.
147 Say 'Y' to include support for this device.
149 To compile this driver as a module, chose 'M' here: the module
150 will be called snd-mts64.
152 config SND_SERIAL_U16550
153 tristate "UART16550 serial MIDI driver"
156 To include support for MIDI serial port interfaces, say Y here
157 and read <file:Documentation/sound/cards/serial-u16550.rst>.
158 This driver works with serial UARTs 16550 and better.
160 This driver accesses the serial port hardware directly, so
161 make sure that the standard serial driver isn't used or
162 deactivated with setserial before loading this driver.
164 To compile this driver as a module, choose M here: the module
165 will be called snd-serial-u16550.
168 tristate "Generic MPU-401 UART driver"
169 select SND_MPU401_UART
171 Say Y here to include support for MIDI ports compatible with
172 the Roland MPU-401 interface in UART mode.
174 To compile this driver as a module, choose M here: the module
175 will be called snd-mpu401.
177 config SND_PORTMAN2X4
178 tristate "Portman 2x4 driver"
182 Say Y here to include support for Midiman Portman 2x4 parallel
185 To compile this driver as a module, choose M here: the module
186 will be called snd-portman2x4.
188 config SND_ML403_AC97CR
189 tristate "Xilinx ML403 AC97 Controller Reference"
190 depends on XILINX_VIRTEX
191 select SND_AC97_CODEC
193 Say Y here to include support for the
194 opb_ac97_controller_ref_v1_00_a ip core found in Xilinx's ML403
197 To compile this driver as a module, choose M here: the module
198 will be called snd-ml403_ac97cr.
200 config SND_AC97_POWER_SAVE
201 bool "AC97 Power-Saving Mode"
202 depends on SND_AC97_CODEC
205 Say Y here to enable the aggressive power-saving support of
206 AC97 codecs. In this mode, the power-mode is dynamically
207 controlled at each open/close.
209 The mode is activated by passing 'power_save=X' to the
210 snd-ac97-codec driver module, where 'X' is the time-out
211 value, a nonnegative integer that specifies how many
212 seconds of idle time the driver must count before it may
213 put the AC97 into power-save mode; a value of 0 (zero)
214 disables the use of this power-save mode.
216 After the snd-ac97-codec driver module has been loaded,
217 the 'power_save' parameter can be set via sysfs as follows:
219 echo 10 > /sys/module/snd_ac97_codec/parameters/power_save
221 In this case, the time-out is set to 10 seconds; setting
222 the time-out to 1 second (the minimum activation value)
223 isn't recommended because many applications try to reopen
224 the device frequently. A value of 10 seconds would be a
225 good choice for normal operations.
227 See Documentation/sound/designs/powersave.rst for more details.
229 config SND_AC97_POWER_SAVE_DEFAULT
230 int "Default time-out for AC97 power-save mode"
231 depends on SND_AC97_POWER_SAVE
234 The default time-out value in seconds for AC97 automatic
235 power-save mode. 0 means to disable the power-save mode.
237 See SND_AC97_POWER_SAVE for more details.