4 depends on SND!=n && PCI
7 tristate "Analog Devices AD1889"
11 Say Y here to include support for the integrated AC97 sound
12 device found in particular on the Hewlett-Packard [BCJ]-xxx0
13 class PA-RISC workstations, using the AD1819 codec.
15 To compile this as a module, choose M here: the module
16 will be called snd-ad1889.
19 tristate "Avance Logic ALS300/ALS300+"
25 Say 'Y' or 'M' to include support for Avance Logic ALS300/ALS300+
27 To compile this driver as a module, choose M here: the module
28 will be called snd-als300
31 tristate "Avance Logic ALS4000"
32 depends on SND && ISA_DMA_API
34 select SND_MPU401_UART
38 Say Y here to include support for soundcards based on Avance Logic
41 To compile this driver as a module, choose M here: the module
42 will be called snd-als4000.
45 tristate "ALi M5451 PCI Audio Controller"
47 select SND_MPU401_UART
50 Say Y here to include support for the integrated AC97 sound
51 device on motherboards using the ALi M5451 Audio Controller
52 (M1535/M1535D/M1535+/M1535D+ south bridges). Newer chipsets
53 use the "Intel/SiS/nVidia/AMD/ALi AC97 Controller" driver.
55 To compile this driver as a module, choose M here: the module
56 will be called snd-ali5451.
59 tristate "ATI IXP AC97 Controller"
63 Say Y here to include support for the integrated AC97 sound
64 device on motherboards with ATI chipsets (ATI IXP 150/200/250/
67 To compile this driver as a module, choose M here: the module
68 will be called snd-atiixp.
70 config SND_ATIIXP_MODEM
71 tristate "ATI IXP Modem"
75 Say Y here to include support for the integrated MC97 modem on
76 motherboards with ATI chipsets (ATI IXP 150/200/250).
78 To compile this driver as a module, choose M here: the module
79 will be called snd-atiixp-modem.
82 tristate "Aureal Advantage"
84 select SND_MPU401_UART
87 Say Y here to include support for Aureal Advantage soundcards.
89 Supported features: Hardware Mixer, SRC, EQ and SPDIF output.
90 3D support code is in place, but not yet useable. For more info,
91 email the ALSA developer list, or <mjander@users.sourceforge.net>.
93 To compile this driver as a module, choose M here: the module
94 will be called snd-au8810.
97 tristate "Aureal Vortex"
99 select SND_MPU401_UART
100 select SND_AC97_CODEC
102 Say Y here to include support for Aureal Vortex soundcards.
104 Supported features: Hardware Mixer and SRC. For more info, email
105 the ALSA developer list, or <mjander@users.sourceforge.net>.
107 To compile this driver as a module, choose M here: the module
108 will be called snd-au8820.
111 tristate "Aureal Vortex 2"
113 select SND_MPU401_UART
114 select SND_AC97_CODEC
116 Say Y here to include support for Aureal Vortex 2 soundcards.
118 Supported features: Hardware Mixer, SRC, EQ and SPDIF output.
119 3D support code is in place, but not yet useable. For more info,
120 email the ALSA developer list, or <mjander@users.sourceforge.net>.
122 To compile this driver as a module, choose M here: the module
123 will be called snd-au8830.
126 tristate "Emagic Audiowerk 2"
129 Say Y here to include support for Emagic Audiowerk 2 soundcards.
131 Supported features: Analog and SPDIF output. Analog or SPDIF input.
132 Note: Switch between analog and digital input does not always work.
133 It can produce continuous noise. The workaround is to switch again
134 (and again) between digital and analog input until it works.
136 To compile this driver as a module, choose M here: the module
137 will be called snd-aw2.
141 tristate "Aztech AZF3328 / PCI168 (EXPERIMENTAL)"
142 depends on SND && EXPERIMENTAL
144 select SND_MPU401_UART
147 Say Y here to include support for Aztech AZF3328 (PCI168)
150 To compile this driver as a module, choose M here: the module
151 will be called snd-azt3328.
154 tristate "Bt87x Audio Capture"
158 If you want to record audio from TV cards based on
159 Brooktree Bt878/Bt879 chips, say Y here and read
160 <file:Documentation/sound/alsa/Bt87x.txt>.
162 To compile this driver as a module, choose M here: the module
163 will be called snd-bt87x.
165 config SND_BT87X_OVERCLOCK
166 bool "Bt87x Audio overclocking"
169 Say Y here if 448000 Hz isn't enough for you and you want to
170 record from the analog input with up to 1792000 Hz.
172 Higher sample rates won't hurt your hardware, but audio
176 tristate "SB Audigy LS / Live 24bit"
178 select SND_AC97_CODEC
182 Say Y here to include support for the Sound Blaster Audigy LS
185 To compile this driver as a module, choose M here: the module
186 will be called snd-ca0106.
189 tristate "C-Media 8338, 8738, 8768, 8770"
192 select SND_MPU401_UART
195 If you want to use soundcards based on C-Media CMI8338, CMI8738,
196 CMI8768 or CMI8770 chips, say Y here and read
197 <file:Documentation/sound/alsa/CMIPCI.txt>.
199 To compile this driver as a module, choose M here: the module
200 will be called snd-cmipci.
202 config SND_OXYGEN_LIB
206 select SND_MPU401_UART
209 tristate "C-Media 8788 (Oxygen)"
211 select SND_OXYGEN_LIB
213 Say Y here to include support for sound cards based on the
214 C-Media CMI8788 (Oxygen HD Audio) chip:
216 * AuzenTech X-Meridian
218 * Club3D Theatron DTS
220 * Razer Barracuda AC-1
223 To compile this driver as a module, choose M here: the module
224 will be called snd-oxygen.
227 tristate "Cirrus Logic (Sound Fusion) CS4281"
231 select SND_AC97_CODEC
233 Say Y here to include support for Cirrus Logic CS4281 chips.
235 To compile this driver as a module, choose M here: the module
236 will be called snd-cs4281.
239 tristate "Cirrus Logic (Sound Fusion) CS4280/CS461x/CS462x/CS463x"
242 select SND_AC97_CODEC
244 Say Y here to include support for Cirrus Logic CS4610/CS4612/
245 CS4614/CS4615/CS4622/CS4624/CS4630/CS4280 chips.
247 To compile this driver as a module, choose M here: the module
248 will be called snd-cs46xx.
250 config SND_CS46XX_NEW_DSP
251 bool "Cirrus Logic (Sound Fusion) New DSP support"
252 depends on SND_CS46XX
255 Say Y here to use a new DSP image for SPDIF and dual codecs.
257 This works better than the old code, so say Y.
260 tristate "CS5530 Audio"
261 depends on SND && ISA_DMA_API
264 Say Y here to include support for audio on Cyrix/NatSemi CS5530 chips.
266 To compile this driver as a module, choose M here: the module
267 will be called snd-cs5530.
269 config SND_CS5535AUDIO
270 tristate "CS5535/CS5536 Audio"
271 depends on SND && X86 && !X86_64
273 select SND_AC97_CODEC
275 Say Y here to include support for audio on CS5535 chips. It is
276 referred to as NS CS5535 IO or AMD CS5535 IO companion in
277 various literature. This driver also supports the CS5536 audio
278 device. However, for both chips, on certain boards, you may
279 need to use ac97_quirk=hp_only if your board has physically
280 mapped headphone out to master output. If that works for you,
281 send lspci -vvv output to the mailing list so that your board
282 can be identified in the quirks list.
284 To compile this driver as a module, choose M here: the module
285 will be called snd-cs5535audio.
288 tristate "(Echoaudio) Darla20"
293 Say 'Y' or 'M' to include support for Echoaudio Darla.
295 To compile this driver as a module, choose M here: the module
296 will be called snd-darla20
299 tristate "(Echoaudio) Gina20"
304 Say 'Y' or 'M' to include support for Echoaudio Gina.
306 To compile this driver as a module, choose M here: the module
307 will be called snd-gina20
310 tristate "(Echoaudio) Layla20"
316 Say 'Y' or 'M' to include support for Echoaudio Layla.
318 To compile this driver as a module, choose M here: the module
319 will be called snd-layla20
322 tristate "(Echoaudio) Darla24"
327 Say 'Y' or 'M' to include support for Echoaudio Darla24.
329 To compile this driver as a module, choose M here: the module
330 will be called snd-darla24
333 tristate "(Echoaudio) Gina24"
338 Say 'Y' or 'M' to include support for Echoaudio Gina24.
340 To compile this driver as a module, choose M here: the module
341 will be called snd-gina24
344 tristate "(Echoaudio) Layla24"
350 Say 'Y' or 'M' to include support for Echoaudio Layla24.
352 To compile this driver as a module, choose M here: the module
353 will be called snd-layla24
356 tristate "(Echoaudio) Mona"
362 Say 'Y' or 'M' to include support for Echoaudio Mona.
364 To compile this driver as a module, choose M here: the module
365 will be called snd-mona
368 tristate "(Echoaudio) Mia"
374 Say 'Y' or 'M' to include support for Echoaudio Mia and Mia-midi.
376 To compile this driver as a module, choose M here: the module
377 will be called snd-mia
380 tristate "(Echoaudio) 3G cards"
386 Say 'Y' or 'M' to include support for Echoaudio Gina3G and Layla3G.
388 To compile this driver as a module, choose M here: the module
389 will be called snd-echo3g
392 tristate "(Echoaudio) Indigo"
397 Say 'Y' or 'M' to include support for Echoaudio Indigo.
399 To compile this driver as a module, choose M here: the module
400 will be called snd-indigo
403 tristate "(Echoaudio) Indigo IO"
408 Say 'Y' or 'M' to include support for Echoaudio Indigo IO.
410 To compile this driver as a module, choose M here: the module
411 will be called snd-indigoio
414 tristate "(Echoaudio) Indigo DJ"
419 Say 'Y' or 'M' to include support for Echoaudio Indigo DJ.
421 To compile this driver as a module, choose M here: the module
422 will be called snd-indigodj
425 tristate "Emu10k1 (SB Live!, Audigy, E-mu APS)"
430 select SND_AC97_CODEC
432 Say Y to include support for Sound Blaster PCI 512, Live!,
433 Audigy and E-mu APS (partially supported) soundcards.
435 The confusing multitude of mixer controls is documented in
436 <file:Documentation/sound/alsa/SB-Live-mixer.txt> and
437 <file:Documentation/sound/alsa/Audigy-mixer.txt>.
439 To compile this driver as a module, choose M here: the module
440 will be called snd-emu10k1.
443 tristate "Emu10k1X (Dell OEM Version)"
445 select SND_AC97_CODEC
448 Say Y here to include support for the Dell OEM version of the
451 To compile this driver as a module, choose M here: the module
452 will be called snd-emu10k1x.
455 tristate "(Creative) Ensoniq AudioPCI 1370"
460 Say Y here to include support for Ensoniq AudioPCI ES1370 chips.
462 To compile this driver as a module, choose M here: the module
463 will be called snd-ens1370.
466 tristate "(Creative) Ensoniq AudioPCI 1371/1373"
469 select SND_AC97_CODEC
471 Say Y here to include support for Ensoniq AudioPCI ES1371 chips and
472 Sound Blaster PCI 64 or 128 soundcards.
474 To compile this driver as a module, choose M here: the module
475 will be called snd-ens1371.
478 tristate "ESS ES1938/1946/1969 (Solo-1)"
481 select SND_MPU401_UART
482 select SND_AC97_CODEC
484 Say Y here to include support for soundcards based on ESS Solo-1
485 (ES1938, ES1946, ES1969) chips.
487 To compile this driver as a module, choose M here: the module
488 will be called snd-es1938.
491 tristate "ESS ES1968/1978 (Maestro-1/2/2E)"
493 select SND_MPU401_UART
494 select SND_AC97_CODEC
496 Say Y here to include support for soundcards based on ESS Maestro
499 To compile this driver as a module, choose M here: the module
500 will be called snd-es1968.
503 tristate "ForteMedia FM801"
506 select SND_MPU401_UART
507 select SND_AC97_CODEC
509 Say Y here to include support for soundcards based on the ForteMedia
512 To compile this driver as a module, choose M here: the module
513 will be called snd-fm801.
515 config SND_FM801_TEA575X_BOOL
516 bool "ForteMedia FM801 + TEA5757 tuner"
519 Say Y here to include support for soundcards based on the ForteMedia
520 FM801 chip with a TEA5757 tuner connected to GPIO1-3 pins (Media
521 Forte SF256-PCS-02) into the snd-fm801 driver.
523 This will enable support for the old V4L1 API.
525 config SND_FM801_TEA575X
527 depends on SND_FM801_TEA575X_BOOL
533 tristate "Intel HD Audio"
538 Say Y here to include support for Intel "High Definition
539 Audio" (Azalia) motherboard devices.
541 To compile this driver as a module, choose M here: the module
542 will be called snd-hda-intel.
545 bool "Build hwdep interface for HD-audio driver"
546 depends on SND_HDA_INTEL
549 Say Y here to build a hwdep interface for HD-audio driver.
550 This interface can be used for out-of-band communication
551 with codecs for debugging purposes.
553 config SND_HDA_CODEC_REALTEK
554 bool "Build Realtek HD-audio codec support"
555 depends on SND_HDA_INTEL
558 Say Y here to include Realtek HD-audio codec support in
559 snd-hda-intel driver, such as ALC880.
561 config SND_HDA_CODEC_ANALOG
562 bool "Build Analog Device HD-audio codec support"
563 depends on SND_HDA_INTEL
566 Say Y here to include Analog Device HD-audio codec support in
567 snd-hda-intel driver, such as AD1986A.
569 config SND_HDA_CODEC_SIGMATEL
570 bool "Build IDT/Sigmatel HD-audio codec support"
571 depends on SND_HDA_INTEL
574 Say Y here to include IDT (Sigmatel) HD-audio codec support in
575 snd-hda-intel driver, such as STAC9200.
577 config SND_HDA_CODEC_VIA
578 bool "Build VIA HD-audio codec support"
579 depends on SND_HDA_INTEL
582 Say Y here to include VIA HD-audio codec support in
583 snd-hda-intel driver, such as VT1708.
585 config SND_HDA_CODEC_ATIHDMI
586 bool "Build ATI HDMI HD-audio codec support"
587 depends on SND_HDA_INTEL
590 Say Y here to include ATI HDMI HD-audio codec support in
591 snd-hda-intel driver, such as ATI RS600 HDMI.
593 config SND_HDA_CODEC_CONEXANT
594 bool "Build Conexant HD-audio codec support"
595 depends on SND_HDA_INTEL
598 Say Y here to include Conexant HD-audio codec support in
599 snd-hda-intel driver, such as CX20549.
601 config SND_HDA_CODEC_CMEDIA
602 bool "Build C-Media HD-audio codec support"
603 depends on SND_HDA_INTEL
606 Say Y here to include C-Media HD-audio codec support in
607 snd-hda-intel driver, such as CMI9880.
609 config SND_HDA_CODEC_SI3054
610 bool "Build Silicon Labs 3054 HD-modem codec support"
611 depends on SND_HDA_INTEL
614 Say Y here to include Silicon Labs 3054 HD-modem codec
615 (and compatibles) support in snd-hda-intel driver.
617 config SND_HDA_GENERIC
618 bool "Enable generic HD-audio codec parser"
619 depends on SND_HDA_INTEL
622 Say Y here to enable the generic HD-audio codec parser
623 in snd-hda-intel driver.
625 config SND_HDA_POWER_SAVE
626 bool "Aggressive power-saving on HD-audio"
627 depends on SND_HDA_INTEL && EXPERIMENTAL
629 Say Y here to enable more aggressive power-saving mode on
630 HD-audio driver. The power-saving timeout can be configured
631 via power_save option or over sysfs on-the-fly.
633 config SND_HDA_POWER_SAVE_DEFAULT
634 int "Default time-out for HD-audio power-save mode"
635 depends on SND_HDA_POWER_SAVE
638 The default time-out value in seconds for HD-audio automatic
639 power-save mode. 0 means to disable the power-save mode.
642 tristate "RME Hammerfall DSP Audio"
648 Say Y here to include support for RME Hammerfall DSP Audio
651 To compile this driver as a module, choose M here: the module
652 will be called snd-hdsp.
655 tristate "RME Hammerfall DSP MADI"
661 Say Y here to include support for RME Hammerfall DSP MADI
664 To compile this driver as a module, choose M here: the module
665 will be called snd-hdspm.
668 tristate "TempoTec HiFier Fantasia"
670 select SND_OXYGEN_LIB
672 Say Y here to include support for the MediaTek/TempoTec HiFier
675 To compile this driver as a module, choose M here: the module
676 will be called snd-hifier.
679 tristate "ICEnsemble ICE1712 (Envy24)"
681 select SND_MPU401_UART
682 select SND_AC97_CODEC
684 Say Y here to include support for soundcards based on the
685 ICE1712 (Envy24) chip.
687 Currently supported hardware is: M-Audio Delta 1010(LT),
688 DiO 2496, 66, 44, 410, Audiophile 24/96; Digigram VX442;
689 TerraTec EWX 24/96, EWS 88MT, 88D, DMX 6Fire, Phase 88;
690 Hoontech SoundTrack DSP 24/Value/Media7.1; Event EZ8.
692 To compile this driver as a module, choose M here: the module
693 will be called snd-ice1712.
696 tristate "ICE/VT1724/1720 (Envy24HT/PT)"
698 select SND_MPU401_UART
699 select SND_AC97_CODEC
701 Say Y here to include support for soundcards based on
702 ICE/VT1724/1720 (Envy24HT/PT) chips.
704 Currently supported hardware is: AMP AUDIO2000; M-Audio
705 Revolution 7.1; TerraTec Aureon 5.1 Sky, 7.1 Space/Universe;
706 AudioTrak Prodigy 7.1; Pontis MS300; Albatron K8X800 Pro II;
707 Chaintech ZNF3-150/250.
709 To compile this driver as a module, choose M here: the module
710 will be called snd-ice1724.
713 tristate "Intel/SiS/nVidia/AMD/ALi AC97 Controller"
715 select SND_AC97_CODEC
717 Say Y here to include support for the integrated AC97 sound
718 device on motherboards with Intel/SiS/nVidia/AMD chipsets, or
719 ALi chipsets using the M5455 Audio Controller. (There is a
720 separate driver for ALi M5451 Audio Controllers.)
722 To compile this driver as a module, choose M here: the module
723 will be called snd-intel8x0.
726 tristate "Intel/SiS/nVidia/AMD MC97 Modem"
728 select SND_AC97_CODEC
730 Say Y here to include support for the integrated MC97 modem on
731 motherboards with Intel/SiS/nVidia/AMD chipsets.
733 To compile this driver as a module, choose M here: the module
734 will be called snd-intel8x0m.
737 tristate "Korg 1212 IO"
739 select FW_LOADER if !SND_KORG1212_FIRMWARE_IN_KERNEL
742 Say Y here to include support for Korg 1212IO soundcards.
744 To compile this driver as a module, choose M here: the module
745 will be called snd-korg1212.
747 config SND_KORG1212_FIRMWARE_IN_KERNEL
748 bool "In-kernel firmware for Korg1212 driver"
749 depends on SND_KORG1212
752 Say Y here to include the static firmware built in the kernel
753 for the Korg1212 driver. If you choose N here, you need to
754 install the firmware files from the alsa-firmware package.
757 tristate "ESS Allegro/Maestro3"
759 select FW_LOADER if !SND_MAESTRO3_FIRMWARE_IN_KERNEL
760 select SND_AC97_CODEC
762 Say Y here to include support for soundcards based on ESS Maestro 3
765 To compile this driver as a module, choose M here: the module
766 will be called snd-maestro3.
768 config SND_MAESTRO3_FIRMWARE_IN_KERNEL
769 bool "In-kernel firmware for Maestro3 driver"
770 depends on SND_MAESTRO3
773 Say Y here to include the static firmware built in the kernel
774 for the Maestro3 driver. If you choose N here, you need to
775 install the firmware files from the alsa-firmware package.
778 tristate "Digigram miXart"
783 If you want to use Digigram miXart soundcards, say Y here and
784 read <file:Documentation/sound/alsa/MIXART.txt>.
786 To compile this driver as a module, choose M here: the module
787 will be called snd-mixart.
790 tristate "NeoMagic NM256AV/ZX"
792 select SND_AC97_CODEC
794 Say Y here to include support for NeoMagic NM256AV/ZX chips.
796 To compile this driver as a module, choose M here: the module
797 will be called snd-nm256.
800 tristate "Digigram PCXHR"
805 Say Y here to include support for Digigram PCXHR boards.
807 To compile this driver as a module, choose M here: the module
808 will be called snd-pcxhr.
811 tristate "Conexant Riptide"
815 select SND_MPU401_UART
816 select SND_AC97_CODEC
818 Say 'Y' or 'M' to include support for Conexant Riptide chip.
820 To compile this driver as a module, choose M here: the module
821 will be called snd-riptide
824 tristate "RME Digi32, 32/8, 32 PRO"
828 Say Y to include support for RME Digi32, Digi32 PRO and
829 Digi32/8 (Sek'd Prodif32, Prodif96 and Prodif Gold) audio
832 To compile this driver as a module, choose M here: the module
833 will be called snd-rme32.
836 tristate "RME Digi96, 96/8, 96/8 PRO"
840 Say Y here to include support for RME Digi96, Digi96/8 and
841 Digi96/8 PRO/PAD/PST soundcards.
843 To compile this driver as a module, choose M here: the module
844 will be called snd-rme96.
847 tristate "RME Digi9652 (Hammerfall)"
851 Say Y here to include support for RME Hammerfall (RME
852 Digi9652/Digi9636) soundcards.
854 To compile this driver as a module, choose M here: the module
855 will be called snd-rme9652.
858 tristate "SiS 7019 Audio Accelerator"
859 depends on SND && X86 && !X86_64
860 select SND_AC97_CODEC
862 Say Y here to include support for the SiS 7019 Audio Accelerator.
864 To compile this driver as a module, choose M here: the module
865 will be called snd-sis7019.
867 config SND_SONICVIBES
868 tristate "S3 SonicVibes"
871 select SND_MPU401_UART
872 select SND_AC97_CODEC
874 Say Y here to include support for soundcards based on the S3
877 To compile this driver as a module, choose M here: the module
878 will be called snd-sonicvibes.
881 tristate "Trident 4D-Wave DX/NX; SiS 7018"
883 select SND_MPU401_UART
884 select SND_AC97_CODEC
886 Say Y here to include support for soundcards based on Trident
887 4D-Wave DX/NX or SiS 7018 chips.
889 To compile this driver as a module, choose M here: the module
890 will be called snd-trident.
893 tristate "VIA 82C686A/B, 8233/8235 AC97 Controller"
895 select SND_MPU401_UART
896 select SND_AC97_CODEC
898 Say Y here to include support for the integrated AC97 sound
899 device on motherboards with VIA chipsets.
901 To compile this driver as a module, choose M here: the module
902 will be called snd-via82xx.
904 config SND_VIA82XX_MODEM
905 tristate "VIA 82C686A/B, 8233 based Modems"
907 select SND_AC97_CODEC
909 Say Y here to include support for the integrated MC97 modem on
910 motherboards with VIA chipsets.
912 To compile this driver as a module, choose M here: the module
913 will be called snd-via82xx-modem.
916 tristate "Asus Virtuoso 200 (Xonar)"
918 select SND_OXYGEN_LIB
920 Say Y here to include support for sound cards based on the
921 Asus AV200 chip, i.e., Xonar D2 and Xonar D2X.
923 To compile this driver as a module, choose M here: the module
924 will be called snd-virtuoso.
927 tristate "Digigram VX222"
931 Say Y here to include support for Digigram VX222 soundcards.
933 To compile this driver as a module, choose M here: the module
934 will be called snd-vx222.
937 tristate "Yamaha YMF724/740/744/754"
939 select FW_LOADER if !SND_YMFPCI_FIRMWARE_IN_KERNEL
941 select SND_MPU401_UART
942 select SND_AC97_CODEC
944 Say Y here to include support for Yamaha PCI audio chips -
945 YMF724, YMF724F, YMF740, YMF740C, YMF744, YMF754.
947 To compile this driver as a module, choose M here: the module
948 will be called snd-ymfpci.
950 config SND_YMFPCI_FIRMWARE_IN_KERNEL
951 bool "In-kernel firmware for YMFPCI driver"
952 depends on SND_YMFPCI
955 Say Y here to include the static firmware built in the kernel
956 for the YMFPCI driver. If you choose N here, you need to
957 install the firmware files from the alsa-firmware package.
959 config SND_AC97_POWER_SAVE
960 bool "AC97 Power-Saving Mode"
961 depends on SND_AC97_CODEC && EXPERIMENTAL
964 Say Y here to enable the aggressive power-saving support of
965 AC97 codecs. In this mode, the power-mode is dynamically
966 controlled at each open/close.
968 The mode is activated by passing power_save=1 option to
969 snd-ac97-codec driver. You can toggle it dynamically over
972 config SND_AC97_POWER_SAVE_DEFAULT
973 int "Default time-out for AC97 power-save mode"
974 depends on SND_AC97_POWER_SAVE
977 The default time-out value in seconds for AC97 automatic
978 power-save mode. 0 means to disable the power-save mode.