1 # ALSA soundcard-configuration
20 tristate "Sequencer support"
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.
28 Many programs require this feature, so you should enable it
29 unless you know what you're doing.
32 tristate "Sequencer dummy client"
33 depends on SND_SEQUENCER
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.
39 You don't need this unless you want to connect many MIDI
40 devices or applications together.
42 To compile this driver as a module, choose M here: the module
43 will be called snd-seq-dummy.
50 tristate "OSS Mixer API"
54 To enable OSS mixer API emulation (/dev/mixer*), say Y here
55 and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
57 Many programs still use the OSS API, so say Y.
59 To compile this driver as a module, choose M here: the module
60 will be called snd-mixer-oss.
63 tristate "OSS PCM (digital audio) API"
68 To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y
69 here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
71 Many programs still use the OSS API, so say Y.
73 To compile this driver as a module, choose M here: the module
74 will be called snd-pcm-oss.
76 config SND_SEQUENCER_OSS
77 bool "OSS Sequencer API"
78 depends on SND && SND_SEQUENCER
81 Say Y here to enable OSS sequencer emulation (both
82 /dev/sequencer and /dev/music interfaces).
84 Many programs still use the OSS API, so say Y.
86 To compile this driver as a module, choose M here: the module
87 will be called snd-seq-oss.
90 tristate "RTC Timer support"
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.
99 To compile this driver as a module, choose M here: the module
100 will be called snd-rtctimer.
102 config SND_SEQ_RTCTIMER_DEFAULT
103 bool "Use RTC as default sequencer timer"
104 depends on SND_RTCTIMER && SND_SEQUENCER
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
114 config SND_DYNAMIC_MINORS
115 bool "Dynamic device file minor numbers (EXPERIMENTAL)"
116 depends on SND && EXPERIMENTAL
118 If you say Y here, the minor numbers of ALSA device files in
119 /dev/snd/ are allocated dynamically. This allows you to have
120 more than 8 sound cards, but requires a dynamic device file
123 If you are unsure about this, say N here.
125 config SND_SUPPORT_OLD_API
126 bool "Support old ALSA API"
130 Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
133 config SND_VERBOSE_PRINTK
134 bool "Verbose printk"
137 Say Y here to enable verbose log messages. These messages
138 will help to identify source file and position containing
141 You don't need this unless you're debugging ALSA.
147 Say Y here to enable ALSA debug code.
149 config SND_DEBUG_DETECT
150 bool "Debug detection"
153 Say Y here to enable extra-verbose log messages printed when