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_DYNAMIC_MINORS 115 bool "Dynamic device file minor numbers (EXPERIMENTAL)" 116 depends on SND && EXPERIMENTAL 117 help 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 121 system like udev. 122 123 If you are unsure about this, say N here. 124 125config SND_SUPPORT_OLD_API 126 bool "Support old ALSA API" 127 depends on SND 128 default y 129 help 130 Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 131 or older). 132 133config SND_VERBOSE_PRINTK 134 bool "Verbose printk" 135 depends on SND 136 help 137 Say Y here to enable verbose log messages. These messages 138 will help to identify source file and position containing 139 printed messages. 140 141 You don't need this unless you're debugging ALSA. 142 143config SND_DEBUG 144 bool "Debug" 145 depends on SND 146 help 147 Say Y here to enable ALSA debug code. 148 149config SND_DEBUG_DETECT 150 bool "Debug detection" 151 depends on SND_DEBUG 152 help 153 Say Y here to enable extra-verbose log messages printed when 154 detecting devices. 155