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gerrit-public.fairphone.software / kernel / msm-4.19 / 21a3479a0b606d36fe24093f70a1c27328cec286 / . / sound / core / Kconfig
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Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1# ALSA soundcard-configuration
2config SND_TIMER
3 tristate
4 depends on SND
5
6config SND_PCM
7 tristate
8 select SND_TIMER
9 depends on SND
10
11config SND_HWDEP
12 tristate
13 depends on SND
14
15config SND_RAWMIDI
16 tristate
17 depends on SND
18
19config SND_SEQUENCER
20 tristate "Sequencer support"
21 depends on SND
22 select SND_TIMER
23 help
24 Say Y or M to enable MIDI sequencer and router support. This
25 feature allows routing and enqueueing of MIDI events. Events
26 can be processed at a given time.
27
28 Many programs require this feature, so you should enable it
29 unless you know what you're doing.
30
31config SND_SEQ_DUMMY
32 tristate "Sequencer dummy client"
33 depends on SND_SEQUENCER
34 help
35 Say Y here to enable the dummy sequencer client. This client
36 is a simple MIDI-through client: all normal input events are
37 redirected to the output port immediately.
38
39 You don't need this unless you want to connect many MIDI
40 devices or applications together.
41
42 To compile this driver as a module, choose M here: the module
43 will be called snd-seq-dummy.
44
45config SND_OSSEMUL
46 bool
47 depends on SND
48
49config SND_MIXER_OSS
50 tristate "OSS Mixer API"
51 depends on SND
52 select SND_OSSEMUL
53 help
54 To enable OSS mixer API emulation (/dev/mixer*), say Y here
55 and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
56
57 Many programs still use the OSS API, so say Y.
58
59 To compile this driver as a module, choose M here: the module
60 will be called snd-mixer-oss.
61
62config SND_PCM_OSS
63 tristate "OSS PCM (digital audio) API"
64 depends on SND
65 select SND_OSSEMUL
66 select SND_PCM
67 help
68 To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y
69 here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
70
71 Many programs still use the OSS API, so say Y.
72
73 To compile this driver as a module, choose M here: the module
74 will be called snd-pcm-oss.
75
Jaroslav Kysela21a34792006-01-13 09:12:11 +0100[diff] [blame^]76config SND_PCM_OSS_PLUGINS
77 bool "OSS PCM (digital audio) API - Include plugin system"
78 depends on SND_PCM_OSS
79 default y
80 help
81 If you disable this option, the ALSA's OSS PCM API will not
82 support conversion of channels, formats and rates. It will
83 behave like most of new OSS/Free drivers in 2.4/2.6 kernels.
84
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]85config SND_SEQUENCER_OSS
86 bool "OSS Sequencer API"
87 depends on SND && SND_SEQUENCER
88 select SND_OSSEMUL
89 help
90 Say Y here to enable OSS sequencer emulation (both
91 /dev/sequencer and /dev/music interfaces).
92
93 Many programs still use the OSS API, so say Y.
94
95 To compile this driver as a module, choose M here: the module
96 will be called snd-seq-oss.
97
98config SND_RTCTIMER
99 tristate "RTC Timer support"
100 depends on SND && RTC
101 select SND_TIMER
102 help
103 Say Y here to enable RTC timer support for ALSA. ALSA uses
104 the RTC timer as a precise timing source and maps the RTC
105 timer to ALSA's timer interface. The ALSA sequencer code also
106 can use this timing source.
107
108 To compile this driver as a module, choose M here: the module
109 will be called snd-rtctimer.
110
Clemens Ladischa4f508b2005-09-06 08:00:19 +0200[diff] [blame]111config SND_SEQ_RTCTIMER_DEFAULT
112 bool "Use RTC as default sequencer timer"
113 depends on SND_RTCTIMER && SND_SEQUENCER
114 default y
115 help
116 Say Y here to use the RTC timer as the default sequencer
117 timer. This is strongly recommended because it ensures
118 precise MIDI timing even when the system timer runs at less
119 than 1000 Hz.
120
121 If in doubt, say Y.
122
Clemens Ladisch332682b2005-11-20 14:07:47 +0100[diff] [blame]123config SND_DYNAMIC_MINORS
124 bool "Dynamic device file minor numbers (EXPERIMENTAL)"
125 depends on SND && EXPERIMENTAL
126 help
127 If you say Y here, the minor numbers of ALSA device files in
128 /dev/snd/ are allocated dynamically. This allows you to have
129 more than 8 sound cards, but requires a dynamic device file
130 system like udev.
131
132 If you are unsure about this, say N here.
133
Takashi Iwai59d48582005-12-01 10:51:58 +0100[diff] [blame]134config SND_SUPPORT_OLD_API
135 bool "Support old ALSA API"
136 depends on SND
137 default y
138 help
139 Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
140 or older).
141
Jaroslav Kysela21a34792006-01-13 09:12:11 +0100[diff] [blame^]142config SND_VERBOSE_PROCFS
143 bool "Verbose procfs contents"
144 depends on SND
145 default y
146 help
147 Say Y here to include code for verbose procfs contents (provides
148 usefull information to developers when a problem occurs). On the
149 other side, it makes the ALSA subsystem larger.
150
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]151config SND_VERBOSE_PRINTK
152 bool "Verbose printk"
153 depends on SND
154 help
155 Say Y here to enable verbose log messages. These messages
156 will help to identify source file and position containing
157 printed messages.
158
159 You don't need this unless you're debugging ALSA.
160
161config SND_DEBUG
162 bool "Debug"
163 depends on SND
164 help
165 Say Y here to enable ALSA debug code.
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]167config SND_DEBUG_DETECT
168 bool "Debug detection"
169 depends on SND_DEBUG
170 help
171 Say Y here to enable extra-verbose log messages printed when
172 detecting devices.