9 select SND_SEQ_DEVICE if SND_SEQUENCER != n
15 select SND_SEQ_DEVICE if SND_SEQUENCER != n
17 # select SEQ stuff to min(SND_SEQUENCER,SND_XXX)
18 config SND_OPL3_LIB_SEQ
19 def_tristate SND_SEQUENCER && SND_OPL3_LIB
20 select SND_SEQ_MIDI_EMUL
21 select SND_SEQ_MIDI_EVENT
23 config SND_OPL4_LIB_SEQ
24 def_tristate SND_SEQUENCER && SND_OPL4_LIB
25 select SND_SEQ_MIDI_EMUL
26 select SND_SEQ_MIDI_EVENT
40 menuconfig SND_DRIVERS
41 bool "Generic sound devices"
44 Support for generic sound devices.
49 tristate "PC-Speaker support (READ HELP!)"
50 depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
54 If you don't have a sound card in your computer, you can include a
55 driver for the PC speaker which allows it to act like a primitive
57 This driver also replaces the pcspkr driver for beeps.
59 You can compile this as a module which will be called snd-pcsp.
61 WARNING: if you already have a soundcard, enabling this
62 driver may lead to a problem. Namely, it may get loaded
63 before the other sound driver of yours, making the
64 pc-speaker a default sound device. Which is likely not
65 what you want. To make this driver play nicely with other
66 sound driver, you can add this in a configuration file under
67 /etc/modprobe.d/ directory:
68 options snd-pcsp index=2
70 You don't need this driver if you only want your pc-speaker to beep.
71 You don't need this driver if you have a tablet piezo beeper
72 in your PC instead of the real speaker.
74 Say N if you have a sound card.
76 Say Y only if you really know what you do.
79 tristate "Dummy (/dev/null) soundcard"
82 Say Y here to include the dummy driver. This driver does
83 nothing, but emulates various mixer controls and PCM devices.
85 You don't need this unless you're testing the hardware support
86 of programs using the ALSA API.
88 To compile this driver as a module, choose M here: the module
89 will be called snd-dummy.
92 tristate "Generic loopback driver (PCM)"
95 Say 'Y' or 'M' to include support for the PCM loopback device.
96 This module returns played samples back to the user space using
97 the standard ALSA PCM device. The devices are routed 0->1 and
98 1->0, where first number is the playback PCM device and second
99 number is the capture device. Module creates two PCM devices and
100 configured number of substreams (see the pcm_substreams module
103 The loopback device allows time sychronization with an external
104 timing source using the time shift universal control (+-20%
107 To compile this driver as a module, choose M here: the module
108 will be called snd-aloop.
111 tristate "Virtual MIDI soundcard"
112 depends on SND_SEQUENCER
115 select SND_SEQ_VIRMIDI
116 select SND_SEQ_MIDI_EVENT
118 Say Y here to include the virtual MIDI driver. This driver
119 allows to connect applications using raw MIDI devices to
122 If you don't know what MIDI is, say N here.
124 To compile this driver as a module, choose M here: the module
125 will be called snd-virmidi.
128 tristate "MOTU MidiTimePiece AV multiport MIDI"
131 To use a MOTU MidiTimePiece AV multiport MIDI adapter
132 connected to the parallel port, say Y here and make sure that
133 the standard parallel port driver isn't used for the port.
135 To compile this driver as a module, choose M here: the module
136 will be called snd-mtpav.
139 tristate "ESI Miditerminal 4140 driver"
143 The ESI Miditerminal 4140 is a 4 In 4 Out MIDI Interface with
144 additional SMPTE Timecode capabilities for the parallel port.
146 Say 'Y' to include support for this device.
148 To compile this driver as a module, chose 'M' here: the module
149 will be called snd-mts64.
151 config SND_SERIAL_U16550
152 tristate "UART16550 serial MIDI driver"
155 To include support for MIDI serial port interfaces, say Y here
156 and read <file:Documentation/sound/cards/serial-u16550.rst>.
157 This driver works with serial UARTs 16550 and better.
159 This driver accesses the serial port hardware directly, so
160 make sure that the standard serial driver isn't used or
161 deactivated with setserial before loading this driver.
163 To compile this driver as a module, choose M here: the module
164 will be called snd-serial-u16550.
167 tristate "Generic MPU-401 UART driver"
168 select SND_MPU401_UART
170 Say Y here to include support for MIDI ports compatible with
171 the Roland MPU-401 interface in UART mode.
173 To compile this driver as a module, choose M here: the module
174 will be called snd-mpu401.
176 config SND_PORTMAN2X4
177 tristate "Portman 2x4 driver"
181 Say Y here to include support for Midiman Portman 2x4 parallel
184 To compile this driver as a module, choose M here: the module
185 will be called snd-portman2x4.
187 config SND_ML403_AC97CR
188 tristate "Xilinx ML403 AC97 Controller Reference"
189 depends on XILINX_VIRTEX
190 select SND_AC97_CODEC
192 Say Y here to include support for the
193 opb_ac97_controller_ref_v1_00_a ip core found in Xilinx's ML403
196 To compile this driver as a module, choose M here: the module
197 will be called snd-ml403_ac97cr.
199 config SND_AC97_POWER_SAVE
200 bool "AC97 Power-Saving Mode"
201 depends on SND_AC97_CODEC
204 Say Y here to enable the aggressive power-saving support of
205 AC97 codecs. In this mode, the power-mode is dynamically
206 controlled at each open/close.
208 The mode is activated by passing 'power_save=X' to the
209 snd-ac97-codec driver module, where 'X' is the time-out
210 value, a nonnegative integer that specifies how many
211 seconds of idle time the driver must count before it may
212 put the AC97 into power-save mode; a value of 0 (zero)
213 disables the use of this power-save mode.
215 After the snd-ac97-codec driver module has been loaded,
216 the 'power_save' parameter can be set via sysfs as follows:
218 echo 10 > /sys/module/snd_ac97_codec/parameters/power_save
220 In this case, the time-out is set to 10 seconds; setting
221 the time-out to 1 second (the minimum activation value)
222 isn't recommended because many applications try to reopen
223 the device frequently. A value of 10 seconds would be a
224 good choice for normal operations.
226 See Documentation/sound/designs/powersave.rst for more details.
228 config SND_AC97_POWER_SAVE_DEFAULT
229 int "Default time-out for AC97 power-save mode"
230 depends on SND_AC97_POWER_SAVE
233 The default time-out value in seconds for AC97 automatic
234 power-save mode. 0 means to disable the power-save mode.
236 See SND_AC97_POWER_SAVE for more details.