sh红帽子linux

1RedHatLinux8.
0AudioDriverInstallationGuideVersion0.
8,February7,2003Copyright2001,2002,2003VIATechnologies,INC.
1.
SummaryThisdocumentdescribesthreemethodsofinstallingtheaudiodriverforVIAsouthbridgechipsVT8231,VT8233,VT8233A,andVT8235underRedHatLinux8.
0.
Thesemethodsinclude:(1)OSbuilt-indriver(onlyforVT8231),(2)ALSAdriverfromtheAdvancedLinuxSoundArchitectureproject,and(3)OSSdriverfrom4FrontTechnologies.
Thestep-by-stepinstructionforeachmethodandacomparisonoftheirrespectivefeaturesareprovided.
Theinformationinthisdocumentisprovided"ASIS,"withoutguaranteeofanykind.
2.
FiledescriptionThispackagecontains7filesasdescribedbelow.
alsa-driver-0.
9.
0rc6.
tar.
bz211-14-0215:021,591,170bytesalsa-lib-0.
9.
0rc6.
tar.
bz211-14-0215:04468,298bytesalsa-utils-0.
9.
0rc6.
tar.
bz211-14-0215:10106,835bytesalsaconf01-22-0314:54306bytesaudunmute11-23-0108:18350bytesoss397g-linux-v2x.
tar.
gz01-08-0322:442,772,842bytesReadme.
docthisfileTheALSAdriverpackagesaremaintainedbytheAdvancedLinuxSoundArchitectureproject,andusersareadvisedtodownloadthelatestversionfromhttp://www.
alsa-project.
org/.
TheOpenSoundSystem(OSS)driverismaintainedby4FrontTechnologies,andusersmaydownloadthelatestevaluationversionfromhttp://www.
opensound.
com/;however,usingtheOSSdrivermayrequireafee.
3.
PriortoinstallationpreparationBeforeinstallinganyaudiodriver,youshoulddotwothings.
First,removethepreviouslyinstalleddriverbyfollowingthestepsbelow.
(1)OSbuilt-in#modprobe–rvia82cxxx_audio(2)ALSA#modprobe–rsnd-pcm-oss#modprobe–rsnd-seq-oss2#modprobe–rsnd-mixer-oss#modprobe–rsnd-via82xx(3)OSSMethod1:#cd/usr/lib/oss#.
/soundoff(turnofftheOSSaudiodriver)Method2:#cd/usr/lib/oss#.
/uninstall.
sh(uninstalltheOSSaudiodriver)Next,ifyouhaveothervendors'driversinstalledaswell,backupthe"/etc/modules.
conf"file.
Incaseyoumakeanymistake,youcanalwaysusethefiletorestoreyoursystembacktotheinitialconfiguration.
Notebeforeremovingthepreviouslyinstalleddriver,terminateanysoundrelatedapplicationsandmakesureyoursoundcardisnolongerinuse.
Runthe"#lsmod"commandtoconfirmwhethertheaudiodriverisloaded.
4.
OSbuilt-indriver(onlyforVT8231)TheOSwillautomaticallydetecttheon-chipaudiocontrollerandinstallthedriverforit.
Toverifywhetherthedriverisinstalled,run"#lsmod"inthecommandlinetocheckiftheaudiomoduleisloadedintokernel.
Ifitwasloaded,youshouldseethemodulenamed"via82cxxx_audio"anditssize.
5.
ALSAdriver(1)PreparekernelsourcecodeThekernel-headersandkernel-sourcearebothrequiredforrebuildingtheaudiokernelmodule.
Youcanselectthesourceduringyourfirstinstallationprocessbycheckingthebox.
.
.
/PackageGroupSelection/KernelDevelopment/BasePackage/kernel-source.
Alternatively,youmayinstallthekernelsourceanytimebyselecting"Package"toolfromthe/Program/SystemSettingsinGNOME/KDE,orrunthe"rpm–ivhkernel-source-2.
4.
18-14.
i386.
rpm"commandtoinstallfromthesecondinstallationCDunderthepath"/RedHat/RPMS/".
(2)DownloadanddecompresstheALSApackageDownloadanddecompressthepackageinadirectoryyouspecify,forexample,byusingthefollowingcommand.
3#bzip2–dcalsa-driver-0.
9.
0rc6.
tar.
bz2|tarxvf–(3)CreatesounddevicesChangedirectoryto"alsa-driver-0.
9.
0rc6",andrunthefollowingcommandstocreatenewsounddevicesinthe/devdirectoryandprobetheaudiocontroller.
#.
/configure–-with-kernel=/usr/src/linux-2.
4#make#makeinstall#.
/snddevicesYouhavetwochoicestoloadtheaudiomoduleintokernel:manuallyorautomatically.
Ifmanually,gotoStep4;ifautomatically,gotoStep5.
(4)ManuallyloadtheaudiomodulesRunthe"modprobe"commandtoloadthenecessaryaudiomodulesintokernel.
#modprobesnd-via82xx#modprobesnd-mixer-oss#modprobesnd-seq-oss#modprobesnd-pcm-ossHowever,aftersystemreboottheaudiomodulesnolongerexistinthekernel;youneedtomanuallyre-loadthemagain.
(5)AutomaticallyloadtheaudiomodulesYouneedtoeditandaddthefollowinglinestothe"/etc/modules.
conf"file.
Theaudioandassociatedmoduleswillbeautomaticallyloadedintothekernelupontheuseofanyaudioapplications.
aliaschar-major-116sndaliassnd-card-0snd-via82xxaliaschar-major-14soundcorealiassound-slot-0snd-card-0aliassound-service-0-0snd-mixer-ossaliassound-service-0-1snd-seq-ossaliassound-service-0-3snd-pcm-ossaliassound-service-0-8snd-seq-ossaliassound-service-0-12snd-pcm-ossAsampleconfigurationfile"alsaconf"isprovidedinthispackageforyourconvenience.
(6)UsethemixertoenableaudiofeaturesTheaudiofeaturesintheALSAdriveraremutedbydefault.
YoumayuseeithertheKMIXortheALSAmixertoenablethem.
TheKMIXiseasytouseandthus4isrecommended.
(a)UsetheKMIXmixer(recommended)ThemixerimplementsaGUIinterfaceforuserstoadjustthesoundlevel.
RuntheKMIX(selectingthroughPrograms/Sound&Video/SoundMixer)toadjustsettings.
However,aftersystemreboottheenduserneedstoruntheKMIXagaintoenabletheaudiodriver;otherwise,theaudiodriverwillbemuted.
OncetheKMIXisactivated,thepreviouslyaudiosettingswillautomaticallytakeintoeffect.
(b)UsetheALSAmixerDownloadandusethefollowinginstructionstoinstalltheALSAlibraryandutilities.
First,decompresstheminthedirectoryyouspecify.
#bzip2–dcalsa-lib-0.
9.
0rc6.
tar.
bz2|tarxvf–#bzip2–dcalsa-utils-0.
9.
0rc6.
tar.
bz2|tarxvf–Thenchangedirectoryto"alsa-lib-0.
9.
0rc6"and"alsa-utils-0.
9.
orc6"respectivelyandrunthefollowingcommands.
#.
/configure;make;makeinstallAfterinstallingtheALSAutilitiessuccessfully,execute"#amixer".
Youwillseethatalloptionsaremutedbydefault.
Runthefollowing12commandstoun-muteandsetthesoundlevel.
#amixersetPCM22unmute#amixersetPC\Speaker22unmute#amixersetMaster22unmute#amixersetMaster\Mono22unmute#amixersetHeadphone22unmute#amixersetPhone22unmute#amixersetAux22unmute#amixersetVideo22unmute#amixersetCD22unmute#amixersetInput\Gain22unmute#amixersetLine22unmute#amixersetMIC22unmuteForyourconvenience,the"audunmute"scriptfileisprovidedinthispackage.
Youmayrunthefollowingcommandtoenablealltheaudiofunction.
#.
/audunmuteNoteifyoucannotrunthe"audunmute"command,makesuretochangeits5attributesbythe"chmod755"command.
Aftersystemreboottheaudiodriverwillbemuted;theenduserneedstorunthe"audunmute"againtoenabletheaudiodriver.
6.
OSSdriverDownloadanevaluationversionanduse"oss397g-linux-v2x.
tar.
gz"orlater.
Runthefollowingtwocommandsinthecommandshelltodecompressandinstalltheaudiodriverpackage.
#tarzxvfoss397g-linux-v2x.
tar.
gz#.
/oss-installThefirstcommandwilldecompress6files.
Thesecondwillinstallthedriver.
Ifyouhaveotheraudiomodulesloadedinyourkernelorotherthird-partymodulesinyoursystem,theOSSprogrammayaborttheinstallprocess.
It'simportanttomakesureyouremoveanypreviouslyinstalledaudiodriverormodulesbeforeinstallingtheOSSdriver.
NavigatethroughtheGUIinterfacetoinstallaudiodriver;choosethetargetdirectorylocatedatthedecompressedOSSpackages;remembertosavethechangesandexit.
Next,changeyourdirectorytothetargetdirectory,#cd/usr/lib/oss.
Run#.
/soundontoloadtherelatedaudiomodulesintokernel.
Oryoumayrun#.
/soundoffanytimetodisablethesound.
Theaudiomoduleswillnotbeloadedafterrestartingthesystem.
Ifyouwanttohaveyouraudiodevicesworkproperlyeverytimeyourebootthesystem,followtheinstructionintheOSSdriverreleasenotes.
7.
DriverfeaturecomparisonThedriverfeaturessupportedbyeachinstallationmethodaredescribedbelow.
Therecorderusedisthebuilt-inGnomeSoundRecorderselectingthroughPrograms/Sound&Video/SoundRecorderandSoundStudio.
(1)VT8231CDplayerSoundRecorderSoundStudioMIDIWAVMP3RealPlayerXineBuilt-inALSAOSS6(2)VT8233CDplayerSoundRecorderSoundStudioMIDIWAVMP3RealPlayerXineALSAOSS(3)VT8233ACDplayerSoundRecorderSoundStudioMIDIWAVMP3RealPlayerXineALSAOSS(4)VT8235CDplayerSoundRecorderSoundStudioMIDIWAVMP3RealPlayerXineALSAOSS8.
TestconfigurationThefollowingsystemswereusedfortest.
(1)VT8231MotherBoardEPIA-V(VT8601A+VT8231)CPUVIAC3800MHzMemory128MBPC133SDRAM(2)VT8233MotherBoardVT5543B(Pro266T+VT8233)CPUVIAC31.
0GHzMemory128MBDDRRAM(3)VT8233AMotherBoardVT5668A1(Pro266T+VT8233A)CPUVIAC31.
0GHzMemory128MBDDRRAM(4)VT8235MotherBoardEPIA-M(CLE266+VT8235)CPUVIAC3933MHzMemory128MBDDRRAM