共享SD卡应用note v1提醒打开featureoption之前要升级之后必须使用

RevisionRevisionAdddiscreteDDRdevicelistAdd1308MPapplytoThisFeatureisavailableafterICS2MP.V1.1IftheversionisearlythanICS2.MPV1.1,PleaseapplyThisFeatureisavailableafterIftheversionisearlythanJB.MPV1.16,pleaseapplyCRAndnotifyFPMLiuHaihongtodoubleThisFeatureisavailablefor6577.JB.MP,6589,KK/KK.AOSP65726582andso[提醒]:打开Featureoption之前要升级打开之后版本，必须使用Flashtoolfirmwareupdate升级。FeatureFeaturekernelarchitectureFeatureFeatureForICSphone,thesharedsdcardfeatureissupportbyGoogledefaut.Whichmeans/data&/sdcardsharethesamepartitionsize.(Mosthappenedonemmcdevice.)/sdcardisjustafoldernamedTherewillbe2advantageofthisTobeavoidofdefineeachpartitionsize.(ext./data/sdcard2GByteEachfolderseemsbiggerthanbefore.(ext./dataor/sdcardDonotneedfatfsFatfsisMicrosoftFeatureFeaturedescriptionHowtoEnablethisThedifferentbetweenEnableanddisablethisExt:thetotalfreesizeinemmcfor/dataand/sdcardisDisablethisEnablethis

2.5GExt42.5GExt4FeatureFeaturekernelarchitecture

sdcardFeatureIfthisfeatureisturnonwilleffectsomefeature,mostofthemneedmountandunmountorneedfomate/sdcardor/data,referenctthefollowingTherearesomesolutionstofixtheeffect,butsomeofthemcomingwithsomelimitationSolutionPartitionchangedupgra /Backup&retoreuserdataneedexternalcard.Sdupdateneedexrnalcard WSUIwillfollowgooleWhenUMSon,andnoexternalcard.MountserviceshouldnotnotifytherisadeviceneedsharetoPCsideThe/sdcardwillnotshowatPCside(UMSon)(Normal)UIsameasrefereneFuntionwillsameasreferenceClear/dataandAddnewAPIforcustomizationinMETAlrtsrIif.n)Choosethesmallestdevicetogenerate/dataext4 4G/8Gdevicecanusedcombolostsomecapability.FeatureFeatureHowtoEnablefeature(ICS2/JBChangeMTK_SHARD_SDCARD=no→yes AddMTK_SHARD_SDCARD=yesFeatureFeaturespecenhancefrom1308ChangeChangeList RemovethefollowingChangList2:AddLowstoragethresholdprotecttoavoid/sdcardtosmallfreesizeandcausethephoneenterlowstoragestage(low/data)Thedefaultsizeis10MWhichmeans,ifthe/datafreesizeis50M,writetosdcardisforbidden,Onlywritetodataisavailable.Thedftotalandfreevalueof/dataand/sdcardmaybenotthesameanymoreThisfeatureisoptional,Resizethethresholdto0M.Thisfeaturewillbenotwork,Thebehavioristhesameasbefore.ChangListHowtoreadthethresholdvalueofdatafreeCatHowtochangethevalueatbuild# (forKK.AOSP)Howtochangethevalueofdata_free_size_thatruneNote:datafreesizethNote:datafreesizethmustbelessthanthefreesizeof/dataSoCopyrightCopyright©MediaTekInc.AlrightsreserFeatureFeaturespecenhancefrom1308ChangList2:UIchangeDf:Thedftotalandfreevalueof/dataand/sdcardmaybenotthesameanymore.UI-FilemangerandSettingFilemangerandSetting- freesizeissameassdcardFeatureFeaturespecenhanceforAddLowstoragethresholdprotecttoavoidwrite/sdcardtosmallfreesizeandcausethephoneenterlowstoragestage(low/data)alsopatchbacktoJB.MPwithCR#defineDATA_FREESIZE_TH_DEFAULTCopyrightCopyright©MediaTekInc.AlrightsreserAfterenablethisfeature,Ifoccursomebuilddataimagefailed,Builderrorstringislikewarning:get_file_size:Computedfilesystemsizelessthanerror:failedtobuildout/target/product/xx/userdata.imgfromPleasecheckifthediscreteDDRisusedatPhoneprojectTxx.xls(forPartSamsuIfthediscreteDDRisPleaseaddthesamepartNumberintotheemmc_regionsheetwith©Alghsrsied.rm2//6custom_MemoryDevice.hmt6589sheetandemmc_regionsheetAfterenablethisfeature,IfoccursomebuilddataimageIfthisisaTabletproject.PleaseaskhelpfromFanIf6575/65