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 LT |
8 | |
9 | config SND_HWDEP | |
10 | tristate | |
1da177e4 LT |
11 | |
12 | config SND_RAWMIDI | |
13 | tristate | |
1da177e4 | 14 | |
5c845beb TI |
15 | config SND_COMPRESS_OFFLOAD |
16 | tristate | |
17 | ||
0d94e41a MB |
18 | # To be effective this also requires INPUT - users should say: |
19 | # select SND_JACK if INPUT=y || INPUT=SND | |
20 | # to avoid having to force INPUT on. | |
21 | config SND_JACK | |
22 | bool | |
23 | ||
1da177e4 LT |
24 | config SND_SEQUENCER |
25 | tristate "Sequencer support" | |
1da177e4 LT |
26 | select SND_TIMER |
27 | help | |
28 | Say Y or M to enable MIDI sequencer and router support. This | |
29 | feature allows routing and enqueueing of MIDI events. Events | |
30 | can be processed at a given time. | |
31 | ||
32 | Many programs require this feature, so you should enable it | |
33 | unless you know what you're doing. | |
34 | ||
35 | config SND_SEQ_DUMMY | |
36 | tristate "Sequencer dummy client" | |
37 | depends on SND_SEQUENCER | |
38 | help | |
39 | Say Y here to enable the dummy sequencer client. This client | |
40 | is a simple MIDI-through client: all normal input events are | |
41 | redirected to the output port immediately. | |
42 | ||
43 | You don't need this unless you want to connect many MIDI | |
44 | devices or applications together. | |
45 | ||
46 | To compile this driver as a module, choose M here: the module | |
47 | will be called snd-seq-dummy. | |
48 | ||
49 | config SND_OSSEMUL | |
d886e87c | 50 | select SOUND_OSS_CORE |
1da177e4 | 51 | bool |
1da177e4 LT |
52 | |
53 | config SND_MIXER_OSS | |
54 | tristate "OSS Mixer API" | |
1da177e4 LT |
55 | select SND_OSSEMUL |
56 | help | |
57 | To enable OSS mixer API emulation (/dev/mixer*), say Y here | |
58 | and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. | |
59 | ||
60 | Many programs still use the OSS API, so say Y. | |
61 | ||
62 | To compile this driver as a module, choose M here: the module | |
63 | will be called snd-mixer-oss. | |
64 | ||
65 | config SND_PCM_OSS | |
66 | tristate "OSS PCM (digital audio) API" | |
1da177e4 LT |
67 | select SND_OSSEMUL |
68 | select SND_PCM | |
69 | help | |
70 | To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y | |
71 | here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. | |
72 | ||
73 | Many programs still use the OSS API, so say Y. | |
74 | ||
75 | To compile this driver as a module, choose M here: the module | |
76 | will be called snd-pcm-oss. | |
77 | ||
21a3479a JK |
78 | config SND_PCM_OSS_PLUGINS |
79 | bool "OSS PCM (digital audio) API - Include plugin system" | |
80 | depends on SND_PCM_OSS | |
81 | default y | |
82 | help | |
83 | If you disable this option, the ALSA's OSS PCM API will not | |
84 | support conversion of channels, formats and rates. It will | |
85 | behave like most of new OSS/Free drivers in 2.4/2.6 kernels. | |
86 | ||
1da177e4 LT |
87 | config SND_SEQUENCER_OSS |
88 | bool "OSS Sequencer API" | |
89fe5117 | 89 | depends on SND_SEQUENCER |
1da177e4 LT |
90 | select SND_OSSEMUL |
91 | help | |
92 | Say Y here to enable OSS sequencer emulation (both | |
93 | /dev/sequencer and /dev/music interfaces). | |
94 | ||
95 | Many programs still use the OSS API, so say Y. | |
96 | ||
c2f60c52 FD |
97 | If you choose M in "Sequencer support" (SND_SEQUENCER), |
98 | this will be compiled as a module. The module will be called | |
99 | snd-seq-oss. | |
1da177e4 | 100 | |
bbaf5e97 TI |
101 | config SND_HRTIMER |
102 | tristate "HR-timer backend support" | |
103 | depends on HIGH_RES_TIMERS | |
104 | select SND_TIMER | |
105 | help | |
106 | Say Y here to enable HR-timer backend for ALSA timer. ALSA uses | |
107 | the hrtimer as a precise timing source. The ALSA sequencer code | |
108 | also can use this timing source. | |
109 | ||
110 | To compile this driver as a module, choose M here: the module | |
111 | will be called snd-hrtimer. | |
112 | ||
113 | config SND_SEQ_HRTIMER_DEFAULT | |
114 | bool "Use HR-timer as default sequencer timer" | |
115 | depends on SND_HRTIMER && SND_SEQUENCER | |
116 | default y | |
117 | help | |
118 | Say Y here to use the HR-timer backend as the default sequencer | |
119 | timer. | |
120 | ||
1da177e4 LT |
121 | config SND_RTCTIMER |
122 | tristate "RTC Timer support" | |
89fe5117 | 123 | depends on RTC |
1da177e4 LT |
124 | select SND_TIMER |
125 | help | |
126 | Say Y here to enable RTC timer support for ALSA. ALSA uses | |
127 | the RTC timer as a precise timing source and maps the RTC | |
128 | timer to ALSA's timer interface. The ALSA sequencer code also | |
129 | can use this timing source. | |
130 | ||
131 | To compile this driver as a module, choose M here: the module | |
132 | will be called snd-rtctimer. | |
133 | ||
52948b3f TI |
134 | Note that this option is exclusive with the new RTC drivers |
135 | (CONFIG_RTC_CLASS) since this requires the old API. | |
136 | ||
a4f508b2 CL |
137 | config SND_SEQ_RTCTIMER_DEFAULT |
138 | bool "Use RTC as default sequencer timer" | |
139 | depends on SND_RTCTIMER && SND_SEQUENCER | |
e78a37bc | 140 | depends on !SND_SEQ_HRTIMER_DEFAULT |
a4f508b2 CL |
141 | default y |
142 | help | |
143 | Say Y here to use the RTC timer as the default sequencer | |
144 | timer. This is strongly recommended because it ensures | |
145 | precise MIDI timing even when the system timer runs at less | |
146 | than 1000 Hz. | |
147 | ||
148 | If in doubt, say Y. | |
149 | ||
332682b1 | 150 | config SND_DYNAMIC_MINORS |
b10e5391 | 151 | bool "Dynamic device file minor numbers" |
332682b1 CL |
152 | help |
153 | If you say Y here, the minor numbers of ALSA device files in | |
154 | /dev/snd/ are allocated dynamically. This allows you to have | |
155 | more than 8 sound cards, but requires a dynamic device file | |
156 | system like udev. | |
157 | ||
158 | If you are unsure about this, say N here. | |
159 | ||
59d48582 TI |
160 | config SND_SUPPORT_OLD_API |
161 | bool "Support old ALSA API" | |
59d48582 TI |
162 | default y |
163 | help | |
164 | Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 | |
165 | or older). | |
166 | ||
21a3479a JK |
167 | config SND_VERBOSE_PROCFS |
168 | bool "Verbose procfs contents" | |
89fe5117 | 169 | depends on PROC_FS |
21a3479a JK |
170 | default y |
171 | help | |
172 | Say Y here to include code for verbose procfs contents (provides | |
a982ac06 | 173 | useful information to developers when a problem occurs). On the |
21a3479a JK |
174 | other side, it makes the ALSA subsystem larger. |
175 | ||
1da177e4 LT |
176 | config SND_VERBOSE_PRINTK |
177 | bool "Verbose printk" | |
1da177e4 LT |
178 | help |
179 | Say Y here to enable verbose log messages. These messages | |
180 | will help to identify source file and position containing | |
181 | printed messages. | |
182 | ||
183 | You don't need this unless you're debugging ALSA. | |
184 | ||
185 | config SND_DEBUG | |
186 | bool "Debug" | |
1da177e4 LT |
187 | help |
188 | Say Y here to enable ALSA debug code. | |
189 | ||
62cf872a TI |
190 | config SND_DEBUG_VERBOSE |
191 | bool "More verbose debug" | |
1da177e4 LT |
192 | depends on SND_DEBUG |
193 | help | |
62cf872a TI |
194 | Say Y here to enable extra-verbose debugging messages. |
195 | ||
196 | Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages. | |
197 | So, say Y only if you are ready to be annoyed. | |
61fb63c0 JK |
198 | |
199 | config SND_PCM_XRUN_DEBUG | |
200 | bool "Enable PCM ring buffer overrun/underrun debugging" | |
201 | default n | |
b7d90a35 | 202 | depends on SND_DEBUG && SND_VERBOSE_PROCFS |
61fb63c0 JK |
203 | help |
204 | Say Y to enable the PCM ring buffer overrun/underrun debugging. | |
205 | It is usually not required, but if you have trouble with | |
206 | sound clicking when system is loaded, it may help to determine | |
207 | the process or driver which causes the scheduling gaps. | |
e922b002 TI |
208 | |
209 | config SND_VMASTER | |
210 | bool | |
0528c749 | 211 | |
35be544a TI |
212 | config SND_KCTL_JACK |
213 | bool | |
214 | ||
cc6a8acd TI |
215 | config SND_DMA_SGBUF |
216 | def_bool y | |
217 | depends on X86 | |
218 | ||
0528c749 | 219 | source "sound/core/seq/Kconfig" |