Commit | Line | Data |
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1da177e4 LT |
1 | # ALSA soundcard-configuration |
2 | config SND_TIMER | |
3 | tristate | |
1da177e4 LT |
4 | |
5 | config SND_PCM | |
6 | tristate | |
7 | select SND_TIMER | |
1da177e4 | 8 | |
b7ae6f31 | 9 | config SND_DMAENGINE_PCM |
903eb318 | 10 | tristate |
b7ae6f31 | 11 | |
1da177e4 LT |
12 | config SND_HWDEP |
13 | tristate | |
1da177e4 LT |
14 | |
15 | config SND_RAWMIDI | |
16 | tristate | |
1da177e4 | 17 | |
5c845beb TI |
18 | config SND_COMPRESS_OFFLOAD |
19 | tristate | |
20 | ||
0d94e41a MB |
21 | # To be effective this also requires INPUT - users should say: |
22 | # select SND_JACK if INPUT=y || INPUT=SND | |
23 | # to avoid having to force INPUT on. | |
24 | config SND_JACK | |
25 | bool | |
26 | ||
1da177e4 LT |
27 | config SND_SEQUENCER |
28 | tristate "Sequencer support" | |
1da177e4 LT |
29 | select SND_TIMER |
30 | help | |
31 | Say Y or M to enable MIDI sequencer and router support. This | |
32 | feature allows routing and enqueueing of MIDI events. Events | |
33 | can be processed at a given time. | |
34 | ||
35 | Many programs require this feature, so you should enable it | |
36 | unless you know what you're doing. | |
37 | ||
38 | config SND_SEQ_DUMMY | |
39 | tristate "Sequencer dummy client" | |
40 | depends on SND_SEQUENCER | |
41 | help | |
42 | Say Y here to enable the dummy sequencer client. This client | |
43 | is a simple MIDI-through client: all normal input events are | |
44 | redirected to the output port immediately. | |
45 | ||
46 | You don't need this unless you want to connect many MIDI | |
47 | devices or applications together. | |
48 | ||
49 | To compile this driver as a module, choose M here: the module | |
50 | will be called snd-seq-dummy. | |
51 | ||
52 | config SND_OSSEMUL | |
d886e87c | 53 | select SOUND_OSS_CORE |
1da177e4 | 54 | bool |
1da177e4 LT |
55 | |
56 | config SND_MIXER_OSS | |
57 | tristate "OSS Mixer API" | |
1da177e4 LT |
58 | select SND_OSSEMUL |
59 | help | |
60 | To enable OSS mixer API emulation (/dev/mixer*), say Y here | |
61 | and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. | |
62 | ||
63 | Many programs still use the OSS API, so say Y. | |
64 | ||
65 | To compile this driver as a module, choose M here: the module | |
66 | will be called snd-mixer-oss. | |
67 | ||
68 | config SND_PCM_OSS | |
69 | tristate "OSS PCM (digital audio) API" | |
1da177e4 LT |
70 | select SND_OSSEMUL |
71 | select SND_PCM | |
72 | help | |
73 | To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y | |
74 | here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. | |
75 | ||
76 | Many programs still use the OSS API, so say Y. | |
77 | ||
78 | To compile this driver as a module, choose M here: the module | |
79 | will be called snd-pcm-oss. | |
80 | ||
21a3479a JK |
81 | config SND_PCM_OSS_PLUGINS |
82 | bool "OSS PCM (digital audio) API - Include plugin system" | |
83 | depends on SND_PCM_OSS | |
84 | default y | |
85 | help | |
86 | If you disable this option, the ALSA's OSS PCM API will not | |
87 | support conversion of channels, formats and rates. It will | |
88 | behave like most of new OSS/Free drivers in 2.4/2.6 kernels. | |
89 | ||
1da177e4 LT |
90 | config SND_SEQUENCER_OSS |
91 | bool "OSS Sequencer API" | |
89fe5117 | 92 | depends on SND_SEQUENCER |
1da177e4 LT |
93 | select SND_OSSEMUL |
94 | help | |
95 | Say Y here to enable OSS sequencer emulation (both | |
96 | /dev/sequencer and /dev/music interfaces). | |
97 | ||
98 | Many programs still use the OSS API, so say Y. | |
99 | ||
c2f60c52 FD |
100 | If you choose M in "Sequencer support" (SND_SEQUENCER), |
101 | this will be compiled as a module. The module will be called | |
102 | snd-seq-oss. | |
1da177e4 | 103 | |
bbaf5e97 TI |
104 | config SND_HRTIMER |
105 | tristate "HR-timer backend support" | |
106 | depends on HIGH_RES_TIMERS | |
107 | select SND_TIMER | |
108 | help | |
109 | Say Y here to enable HR-timer backend for ALSA timer. ALSA uses | |
110 | the hrtimer as a precise timing source. The ALSA sequencer code | |
111 | also can use this timing source. | |
112 | ||
113 | To compile this driver as a module, choose M here: the module | |
114 | will be called snd-hrtimer. | |
115 | ||
116 | config SND_SEQ_HRTIMER_DEFAULT | |
117 | bool "Use HR-timer as default sequencer timer" | |
118 | depends on SND_HRTIMER && SND_SEQUENCER | |
119 | default y | |
120 | help | |
121 | Say Y here to use the HR-timer backend as the default sequencer | |
122 | timer. | |
123 | ||
1da177e4 LT |
124 | config SND_RTCTIMER |
125 | tristate "RTC Timer support" | |
89fe5117 | 126 | depends on RTC |
1da177e4 LT |
127 | select SND_TIMER |
128 | help | |
129 | Say Y here to enable RTC timer support for ALSA. ALSA uses | |
130 | the RTC timer as a precise timing source and maps the RTC | |
131 | timer to ALSA's timer interface. The ALSA sequencer code also | |
132 | can use this timing source. | |
133 | ||
134 | To compile this driver as a module, choose M here: the module | |
135 | will be called snd-rtctimer. | |
136 | ||
52948b3f TI |
137 | Note that this option is exclusive with the new RTC drivers |
138 | (CONFIG_RTC_CLASS) since this requires the old API. | |
139 | ||
a4f508b2 CL |
140 | config SND_SEQ_RTCTIMER_DEFAULT |
141 | bool "Use RTC as default sequencer timer" | |
142 | depends on SND_RTCTIMER && SND_SEQUENCER | |
e78a37bc | 143 | depends on !SND_SEQ_HRTIMER_DEFAULT |
a4f508b2 CL |
144 | default y |
145 | help | |
146 | Say Y here to use the RTC timer as the default sequencer | |
147 | timer. This is strongly recommended because it ensures | |
148 | precise MIDI timing even when the system timer runs at less | |
149 | than 1000 Hz. | |
150 | ||
151 | If in doubt, say Y. | |
152 | ||
332682b1 | 153 | config SND_DYNAMIC_MINORS |
b10e5391 | 154 | bool "Dynamic device file minor numbers" |
332682b1 CL |
155 | help |
156 | If you say Y here, the minor numbers of ALSA device files in | |
157 | /dev/snd/ are allocated dynamically. This allows you to have | |
158 | more than 8 sound cards, but requires a dynamic device file | |
159 | system like udev. | |
160 | ||
161 | If you are unsure about this, say N here. | |
162 | ||
7bb2491b TI |
163 | config SND_MAX_CARDS |
164 | int "Max number of sound cards" | |
165 | range 4 256 | |
166 | default 32 | |
167 | depends on SND_DYNAMIC_MINORS | |
168 | help | |
169 | Specify the max number of sound cards that can be assigned | |
170 | on a single machine. | |
171 | ||
59d48582 TI |
172 | config SND_SUPPORT_OLD_API |
173 | bool "Support old ALSA API" | |
59d48582 TI |
174 | default y |
175 | help | |
176 | Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 | |
177 | or older). | |
178 | ||
21a3479a JK |
179 | config SND_VERBOSE_PROCFS |
180 | bool "Verbose procfs contents" | |
89fe5117 | 181 | depends on PROC_FS |
21a3479a JK |
182 | default y |
183 | help | |
184 | Say Y here to include code for verbose procfs contents (provides | |
a982ac06 | 185 | useful information to developers when a problem occurs). On the |
21a3479a JK |
186 | other side, it makes the ALSA subsystem larger. |
187 | ||
1da177e4 LT |
188 | config SND_VERBOSE_PRINTK |
189 | bool "Verbose printk" | |
1da177e4 LT |
190 | help |
191 | Say Y here to enable verbose log messages. These messages | |
192 | will help to identify source file and position containing | |
193 | printed messages. | |
194 | ||
195 | You don't need this unless you're debugging ALSA. | |
196 | ||
197 | config SND_DEBUG | |
198 | bool "Debug" | |
1da177e4 LT |
199 | help |
200 | Say Y here to enable ALSA debug code. | |
201 | ||
62cf872a TI |
202 | config SND_DEBUG_VERBOSE |
203 | bool "More verbose debug" | |
1da177e4 LT |
204 | depends on SND_DEBUG |
205 | help | |
62cf872a TI |
206 | Say Y here to enable extra-verbose debugging messages. |
207 | ||
208 | Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages. | |
209 | So, say Y only if you are ready to be annoyed. | |
61fb63c0 JK |
210 | |
211 | config SND_PCM_XRUN_DEBUG | |
212 | bool "Enable PCM ring buffer overrun/underrun debugging" | |
213 | default n | |
b7d90a35 | 214 | depends on SND_DEBUG && SND_VERBOSE_PROCFS |
61fb63c0 JK |
215 | help |
216 | Say Y to enable the PCM ring buffer overrun/underrun debugging. | |
217 | It is usually not required, but if you have trouble with | |
218 | sound clicking when system is loaded, it may help to determine | |
219 | the process or driver which causes the scheduling gaps. | |
e922b002 TI |
220 | |
221 | config SND_VMASTER | |
222 | bool | |
0528c749 | 223 | |
cc6a8acd TI |
224 | config SND_DMA_SGBUF |
225 | def_bool y | |
226 | depends on X86 | |
227 | ||
0528c749 | 228 | source "sound/core/seq/Kconfig" |