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 | |
0d94e41a MB |
15 | # To be effective this also requires INPUT - users should say: |
16 | # select SND_JACK if INPUT=y || INPUT=SND | |
17 | # to avoid having to force INPUT on. | |
18 | config SND_JACK | |
19 | bool | |
20 | ||
1da177e4 LT |
21 | config SND_SEQUENCER |
22 | tristate "Sequencer support" | |
1da177e4 LT |
23 | select SND_TIMER |
24 | help | |
25 | Say Y or M to enable MIDI sequencer and router support. This | |
26 | feature allows routing and enqueueing of MIDI events. Events | |
27 | can be processed at a given time. | |
28 | ||
29 | Many programs require this feature, so you should enable it | |
30 | unless you know what you're doing. | |
31 | ||
32 | config SND_SEQ_DUMMY | |
33 | tristate "Sequencer dummy client" | |
34 | depends on SND_SEQUENCER | |
35 | help | |
36 | Say Y here to enable the dummy sequencer client. This client | |
37 | is a simple MIDI-through client: all normal input events are | |
38 | redirected to the output port immediately. | |
39 | ||
40 | You don't need this unless you want to connect many MIDI | |
41 | devices or applications together. | |
42 | ||
43 | To compile this driver as a module, choose M here: the module | |
44 | will be called snd-seq-dummy. | |
45 | ||
46 | config SND_OSSEMUL | |
d886e87c | 47 | select SOUND_OSS_CORE |
1da177e4 | 48 | bool |
1da177e4 LT |
49 | |
50 | config SND_MIXER_OSS | |
51 | tristate "OSS Mixer API" | |
1da177e4 LT |
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 | ||
62 | config SND_PCM_OSS | |
63 | tristate "OSS PCM (digital audio) API" | |
1da177e4 LT |
64 | select SND_OSSEMUL |
65 | select SND_PCM | |
66 | help | |
67 | To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y | |
68 | here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>. | |
69 | ||
70 | Many programs still use the OSS API, so say Y. | |
71 | ||
72 | To compile this driver as a module, choose M here: the module | |
73 | will be called snd-pcm-oss. | |
74 | ||
21a3479a JK |
75 | config SND_PCM_OSS_PLUGINS |
76 | bool "OSS PCM (digital audio) API - Include plugin system" | |
77 | depends on SND_PCM_OSS | |
78 | default y | |
79 | help | |
80 | If you disable this option, the ALSA's OSS PCM API will not | |
81 | support conversion of channels, formats and rates. It will | |
82 | behave like most of new OSS/Free drivers in 2.4/2.6 kernels. | |
83 | ||
1da177e4 LT |
84 | config SND_SEQUENCER_OSS |
85 | bool "OSS Sequencer API" | |
89fe5117 | 86 | depends on SND_SEQUENCER |
1da177e4 LT |
87 | select SND_OSSEMUL |
88 | help | |
89 | Say Y here to enable OSS sequencer emulation (both | |
90 | /dev/sequencer and /dev/music interfaces). | |
91 | ||
92 | Many programs still use the OSS API, so say Y. | |
93 | ||
c2f60c52 FD |
94 | If you choose M in "Sequencer support" (SND_SEQUENCER), |
95 | this will be compiled as a module. The module will be called | |
96 | snd-seq-oss. | |
1da177e4 LT |
97 | |
98 | config SND_RTCTIMER | |
99 | tristate "RTC Timer support" | |
89fe5117 | 100 | depends on RTC |
1da177e4 LT |
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 | ||
a4f508b2 CL |
111 | config 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 | ||
332682b1 | 123 | config SND_DYNAMIC_MINORS |
b10e5391 | 124 | bool "Dynamic device file minor numbers" |
332682b1 CL |
125 | help |
126 | If you say Y here, the minor numbers of ALSA device files in | |
127 | /dev/snd/ are allocated dynamically. This allows you to have | |
128 | more than 8 sound cards, but requires a dynamic device file | |
129 | system like udev. | |
130 | ||
131 | If you are unsure about this, say N here. | |
132 | ||
59d48582 TI |
133 | config SND_SUPPORT_OLD_API |
134 | bool "Support old ALSA API" | |
59d48582 TI |
135 | default y |
136 | help | |
137 | Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 | |
138 | or older). | |
139 | ||
21a3479a JK |
140 | config SND_VERBOSE_PROCFS |
141 | bool "Verbose procfs contents" | |
89fe5117 | 142 | depends on PROC_FS |
21a3479a JK |
143 | default y |
144 | help | |
145 | Say Y here to include code for verbose procfs contents (provides | |
a982ac06 | 146 | useful information to developers when a problem occurs). On the |
21a3479a JK |
147 | other side, it makes the ALSA subsystem larger. |
148 | ||
1da177e4 LT |
149 | config SND_VERBOSE_PRINTK |
150 | bool "Verbose printk" | |
1da177e4 LT |
151 | help |
152 | Say Y here to enable verbose log messages. These messages | |
153 | will help to identify source file and position containing | |
154 | printed messages. | |
155 | ||
156 | You don't need this unless you're debugging ALSA. | |
157 | ||
158 | config SND_DEBUG | |
159 | bool "Debug" | |
1da177e4 LT |
160 | help |
161 | Say Y here to enable ALSA debug code. | |
162 | ||
62cf872a TI |
163 | config SND_DEBUG_VERBOSE |
164 | bool "More verbose debug" | |
1da177e4 LT |
165 | depends on SND_DEBUG |
166 | help | |
62cf872a TI |
167 | Say Y here to enable extra-verbose debugging messages. |
168 | ||
169 | Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages. | |
170 | So, say Y only if you are ready to be annoyed. | |
61fb63c0 JK |
171 | |
172 | config SND_PCM_XRUN_DEBUG | |
173 | bool "Enable PCM ring buffer overrun/underrun debugging" | |
174 | default n | |
b7d90a35 | 175 | depends on SND_DEBUG && SND_VERBOSE_PROCFS |
61fb63c0 JK |
176 | help |
177 | Say Y to enable the PCM ring buffer overrun/underrun debugging. | |
178 | It is usually not required, but if you have trouble with | |
179 | sound clicking when system is loaded, it may help to determine | |
180 | the process or driver which causes the scheduling gaps. | |
e922b002 TI |
181 | |
182 | config SND_VMASTER | |
183 | bool |