xref: /openbmc/linux/sound/core/Kconfig (revision d5cb9783536a41df9f9cba5b0a1d78047ed787f7)
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
76config SND_SEQUENCER_OSS
77	bool "OSS Sequencer API"
78	depends on SND && SND_SEQUENCER
79	select SND_OSSEMUL
80	help
81	  Say Y here to enable OSS sequencer emulation (both
82	  /dev/sequencer and /dev/music interfaces).
83
84	  Many programs still use the OSS API, so say Y.
85
86	  To compile this driver as a module, choose M here: the module
87	  will be called snd-seq-oss.
88
89config SND_RTCTIMER
90	tristate "RTC Timer support"
91	depends on SND && RTC
92	select SND_TIMER
93	help
94	  Say Y here to enable RTC timer support for ALSA.  ALSA uses
95	  the RTC timer as a precise timing source and maps the RTC
96	  timer to ALSA's timer interface.  The ALSA sequencer code also
97	  can use this timing source.
98
99	  To compile this driver as a module, choose M here: the module
100	  will be called snd-rtctimer.
101
102config SND_SEQ_RTCTIMER_DEFAULT
103	bool "Use RTC as default sequencer timer"
104	depends on SND_RTCTIMER && SND_SEQUENCER
105	default y
106	help
107	  Say Y here to use the RTC timer as the default sequencer
108	  timer.  This is strongly recommended because it ensures
109	  precise MIDI timing even when the system timer runs at less
110	  than 1000 Hz.
111
112	  If in doubt, say Y.
113
114config SND_VERBOSE_PRINTK
115	bool "Verbose printk"
116	depends on SND
117	help
118	  Say Y here to enable verbose log messages.  These messages
119	  will help to identify source file and position containing
120	  printed messages.
121
122	  You don't need this unless you're debugging ALSA.
123
124config SND_DEBUG
125	bool "Debug"
126	depends on SND
127	help
128	  Say Y here to enable ALSA debug code.
129
130config SND_DEBUG_MEMORY
131	bool "Debug memory"
132	depends on SND_DEBUG
133	help
134	  Say Y here to enable debugging of memory allocations.
135
136config SND_DEBUG_DETECT
137	bool "Debug detection"
138	depends on SND_DEBUG
139	help
140	  Say Y here to enable extra-verbose log messages printed when
141	  detecting devices.
142
143config SND_GENERIC_DRIVER
144	bool
145	depends on SND
146