Tệp trình điều khiển
- /AFA.cab
- /ALTMIXER.INI
- /CHDRT32.sys
- /CHDRT32V64.sys
- /CSpkExt32.dll
- /CX32BP16.dll
- /CxAudMsg.cab
- /CxPageMaster32.dll
- /DIFxAPI.dll
- /FMAPO.dll
- /ForteConfig.cab
- /MIXER.INI
- /SAII.cab
- /UCI32A102.dll
- /UIU32a.exe
- /W7Skylake.ini
- /chdrt.cat
- /chdrt.inf
- /inst_afa.ini
- /inst_cxaudmsg.ini
- /inst_forteconfig.ini
- /inst_saii.ini
- /slcnt32.dll
- /slconfig.xml
- /slprp32.dll
- /sltech32.dll
- /sluapo32.dll
- /tosasfapo32.dll
- /toseaeapo32.dll
- /tossaeapo32.dll
- /tossaemaxapo32.dll
Thông tin thiết bị
-
/chdrt.inf
[ids]- HDAUDIO\FUNC_01&VEN_14F1&DEV_5111&SUBSYS_117906C2
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_117906C2
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_1179068A
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_11790662
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_11790680
- HDAUDIO\FUNC_01&VEN_14F1&DEV_5111&SUBSYS_11790694
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_11790694
- HDAUDIO\FUNC_01&VEN_14F1&DEV_5111&SUBSYS_11790696
- HDAUDIO\FUNC_01&VEN_14F1&DEV_510F&SUBSYS_11790696
[version]- Signature
$Windows NT$
- Class
MEDIA
- ClassGuid
{4d36e96c-e325-11ce-bfc1-08002be10318}
- Provider
Conexant
- DriverVer
03/20/2017,8.66.47.53
- CatalogFile
chdrt.cat
[strings]- MediaCategories
SYSTEM\CurrentControlSet\Control\MediaCategories
- CNXT
Conexant
- Conexant.Mfg
Conexant
- DiskId1
Installation Disk
- HdAudioFunctionDriver.CNXTCodec.DeviceDesc
Conexant HD Audio
- UAAFunctionDriverForHdAudio.SvcDesc
Conexant UAA Function Driver for High Definition Audio Service
- HDAudioOEMFriendlyName
Conexant HD Audio
- RearLineOutWaveDeviceName
Conexant HD Audio output
- RearLineOutDacName
Conexant HD Audio line out
- RearLineInWaveDeviceName
Conexant HD Audio input
- RearMicInWaveDeviceName
Conexant HD Audio mic
- FrontPanelHeadphoneWaveDeviceName
Conexant HD Audio headphone
- HeadphoneWaveDeviceName
Conexant HD Audio headphone
- FrontHPOutDacName
Conexant HD Audio headphone
- FrontPanelMicWaveDeviceName
Conexant HD Audio mic
- DigitalOutputWaveDeviceName
Conexant HD Audio digital out
- DigitalInputWaveDeviceName
Conexant HD Audio digital in
- MicArrayWaveDeviceName
Conexant HD Audio mic array
- AuxInWaveDeviceName
Conexant HD Audio aux in
- AnalogDigitalCaptureWaveName
Conexant HD Audio capture
- DigitalCaptureWaveName
Conexant HD Audio capture
- SMXWaveDeviceName
Conexant HD Audio
- StereoMixWaveName
Conexant HD Stereo Mix
- IndependentMicWaveDeviceName
Conexant HD Audio Microphone
- IndependentMicTopoDeviceName
Conexant HD Audio Microphone mixer
- IndependentMic2WaveDeviceName
Conexant HD Audio Microphone 2
- IndependentMic2TopoDeviceName
Conexant HD Audio Microphone 2 mixer
- IndependentMic3WaveDeviceName
Conexant HD Audio Microphone 3
- IndependentMic3TopoDeviceName
Conexant HD Audio Microphone 3 mixer
- IndependentMic4WaveDeviceName
Conexant HD Audio Microphone 4
- IndependentMic4TopoDeviceName
Conexant HD Audio Microphone 4 mixer
- IndependentMic5WaveDeviceName
Conexant HD Audio Microphone 5
- IndependentMic5TopoDeviceName
Conexant HD Audio Microphone 5 mixer
- RearLineOutTopoDeviceName
Conexant HD Audio output mixer
- RearLineInTopoDeviceName
Conexant HD Audio input mixer
- RearMicInTopoDeviceName
Conexant HD Audio mic mixer
- FrontPanelHeadphoneTopoDeviceName
Conexant HD Audio headphone mixer
- HeadphoneTopoDeviceName
Conexant HD Audio headphone mixer
- FrontPanelMicTopoDeviceName
Conexant HD Audio mic mixer
- DigitalOutputTopoDeviceName
Conexant HD Audio digital out mixer
- DigitalInputTopoDeviceName
Conexant HD Audio digital in mixer
- MicArrayTopoDeviceName
Conexant HD Audio mic array mixer
- AuxInTopoDeviceName
Conexant HD Audio aux in mixer
- AnalogDigitalCaptureTopoName
Conexant HD Audio capture mixer
- DigitalCaptureTopoName
Conexant HD Audio capture mixer
- SMXTopoDeviceName
Conexant HD Audio mixer
- StereoMixTopoName
Conexant HD Audio Stereo Mixer
- HdAudioDeviceDescription
Conexant High Definition SmartAudio
- MicDockingSelectName
Mic Docking Sel
- KSNAME_RearLineOutWave
RearLineOutWave
- KSNAME_FrontPanelHeadphoneWave
FrontPanelHeadphoneWave
- KSNAME_DigitalOutputWave
DigitalOutputWave
- KSNAME_DigitalOutput2Wave
DigitalOutput2Wave
- KSNAME_DigitalInputWave
DigitalInputWave
- KSNAME_AnalogDigitalCaptureWave
AnalogDigitalCaptureWave
- KSNAME_AnalogDigitalCapture1Wave
AnalogDigitalCapture1Wave
- KSNAME_AnalogDigitalCapture2Wave
AnalogDigitalCapture2Wave
- KSNAME_AnalogDigitalCaptureR1Wave
AnalogDigitalCaptureR1Wave
- KSNAME_AnalogDigitalCaptureR2Wave
AnalogDigitalCaptureR2Wave
- KSNAME_AnalogDigitalCaptureR3Wave
AnalogDigitalCapture2R3Wave
- KSNAME_HeadphoneWave
HeadphoneWave
- KSNAME_DigitalCaptureWave
DigitalCaptureWave
- KSNAME_StereoMixWave
StereoMixWave
- KSNAME_RearLineOutTopo
RearLineOutTopo
- KSNAME_FrontPanelHeadphoneTopo
FrontPanelHeadphoneTopo
- KSNAME_DigitalOutputTopo
DigitalOutputTopo
- KSNAME_DigitalOutput2Topo
DigitalOutput2Topo
- KSNAME_DigitalInputTopo
DigitalInputTopo
- KSNAME_AnalogDigitalCaptureTopo
AnalogDigitalCaptureTopo
- KSNAME_AnalogDigitalCapture1Topo
AnalogDigitalCapture1Topo
- KSNAME_AnalogDigitalCapture2Topo
AnalogDigitalCapture2Topo
- KSNAME_AnalogDigitalCaptureR1Topo
AnalogDigitalCaptureR1Topo
- KSNAME_AnalogDigitalCaptureR2Topo
AnalogDigitalCaptureR2Topo
- KSNAME_AnalogDigitalCaptureR3Topo
AnalogDigitalCaptureR3Topo
- KSNAME_HeadphoneTopo
HeadphoneTopo
- KSNAME_DigitalCaptureTopo
DigitalCaptureTopo
- KSNAME_StereoMixTopo
StereoMixTopo
- CNXTGUID.SwapC
{4A15B633-1490-4480-AE10-4B25DE911193}
- CNXTGUID.FPMicSel
{4A15B637-1490-4480-AE10-4B25DE911193}
- CNXTGUID.RITaskSel
{4A15B639-1490-4480-AE10-4B25DE911193}
- CNXTGUID.MuteIntSpkr
{4A15B63B-1490-4480-AE10-4B25DE911193}
- CNXTGUID.InputMon
{C9274F9B-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.RearInput
{C9274F99-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.HdAudGuidMicDockingSelect
{4A15B63D-1490-4480-AE10-4B25DE911193}
- CNXTGUID.InternalMicrophone
{C9274F91-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.ExternalMicrophone
{C9274F93-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.DockingMicrophone
{C9274F95-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.SpeakerHeadphone
{C9274F97-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.PcBeep
{C9274F9D-9504-44cc-971A-88A2C64D08D4}
- CNXTGUID.FrontMicrophone
{4BC49CF1-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.RearMicrophone
{4BC49CF3-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.FrontMic
{4BC49CFB-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.RearMic
{4BC49CFD-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.FrontLineIn
{4BC49CF5-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.RearLineIn
{4BC49CF7-B096-4956-A0EC-D7D93170CC00}
- CNXTGUID.FrontInput
{4BC49CF9-B096-4956-A0EC-D7D93170CC00}
- Control.SwapC
Swap Center/Subwoofer
- Control.MicSelect
Front Mic Select
- Control.RITaskSelect
Use as Microphone
- Control.MuteIntSpkr
Mute Internal Speaker
- Pin.InputMon
Input Monitor
- Pin.RearInput
Rear Input
- Pin.InternalMicrophone
Internal Microphone
- Pin.ExternalMicrophone
External Microphone
- Pin.DockingMicrophone
Docking Microphone
- Pin.SpeakerHeadphone
Internal Speaker/Headphone
- Pin.PcBeep
PC Beep
- Pin.FrontMicrophone
Front Microphone
- Pin.RearMicrophone
Rear Microphone
- Pin.FrontMic
Front Mic
- Pin.RearMic
Rear Mic
- Pin.FrontLineIn
Front Line In
- Pin.RearLineIn
Rear Line In
- Pin.FrontInput
Front Input
- DisableDigitalOutputName
Disable Digital Output
- Control.MicDockingSelectName
Mic Docking Sel
- KSCATEGORY_AUDIO
{6994AD04-93EF-11D0-A3CC-00A0C9223196}
- KSCATEGORY_RENDER
{65E8773E-8F56-11D0-A3B9-00A0C9223196}
- KSCATEGORY_CAPTURE
{65E8773D-8F56-11D0-A3B9-00A0C9223196}
- KSCATEGORY_TOPOLOGY
{DDA54A40-1E4C-11D1-A050-405705C10000}
- KSCATEGORY_REALTIME
{EB115FFC-10C8-4964-831D-6DCB02E6F23F}
- Proxy.CLSID
{17CCA71B-ECD7-11D0-B908-00A0C9223196}
- HdAudGuidRearLineOutDac
{EEF86A90-3742-4974-B8D2-5370E1C540F6}
- HdAudGuidFrontHPOutDac
{497B34AD-D67F-411c-8076-80D5B4250D67}
- HdAudGuidDisableDigitalOutput
{F06BB67D-5C2F-48ad-A307-B449E3B217D6}
- HdAudGuidMicDockingSelect
{6F0B76BE-8F71-4656-828D-8E40F658ABE8}
- UIPATH
CNXT_AUDIO_HDA
- OverrideVerbsPath
System\CurrentControlSet\Control\Conexant\OverrideVerbs
- OverrideVerbsPath01
System\CurrentControlSet\Control\Conexant\OverrideVerbs01
- OverrideVerbsPath02
System\CurrentControlSet\Control\Conexant\OverrideVerbs02
- OverrideVerbsPath03
System\CurrentControlSet\Control\Conexant\OverrideVerbs03
- RemVerbsPath
System\CurrentControlSet\Control\Conexant\RemVerbs
- RemVerbsPath01
System\CurrentControlSet\Control\Conexant\RemVerbs01
- RemVerbsPath02
System\CurrentControlSet\Control\Conexant\RemVerbs02
- RemVerbsPath03
System\CurrentControlSet\Control\Conexant\RemVerbs03
- IFRegPath
SOFTWARE\Conexant\SMWDMIF
- WindowsRunKey
Software\Microsoft\Windows\CurrentVersion\Run
- WindowsAppPaths
SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths
- PnPRegPath
Software\Conexant\smax4pnp
- WindowsCPDirect
SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel
- CoreFilePath
Conexant\Core
- EPattributePath
Settings\EPattributes
- EPattributePath01
Settings\EPattributes01
- EPattributePath02
Settings\EPattributes02
- EPattributePath03
Settings\EPattributes03
- PKEY_SRS30_Association
{7A8B74C8-FA66-4460-8542-D6119C59E9D4},0
- PKEY_SRS30_APOLocation
{7A8B74C8-FA66-4460-8542-D6119C59E9D4},1
- PKEY_SRS30_XmlLocation
{7A8B74C8-FA66-4460-8542-D6119C59E9D4},2
- PKEY_SRS30_HWIdentifier
{7A8B74C8-FA66-4460-8542-D6119C59E9D4},3
- PKEY_SRS30_CodecId
{7A8B74C8-FA66-4460-8542-D6119C59E9D4},4
- SRS_PreFX_KEY
{0D490185-0EF5-4E25-9994-EF95218A851C}
- SRS_REGISTRY
Software\SRS Labs\APO
- SRS_SYSFX_UI_CLSID
{7F578410-1C20-4677-B18F-4474000865D4}
- SRS_SYSFX_UI_TRUBASS_CLSID
{7F35C5D8-A7A7-4E6F-8ADB-E695EF0035E9}
- SRS_SYSFX_PREMIX_CLSID
{0D490185-0EF5-4E25-9994-EF95218A851C}
- SRS_SYSFX_PREMIX_CPTR_CLSID
{3C8BA013-2AA8-4687-8913-4EA83E269AE8}
- SRS_SYSFX_FriendlyName
SRS Universal APO 3.0 for HD Audio from SRS Labs, Inc.
- SRS3_SYSFX_SFX_CLSID
{1B917FE2-47D1-425D-A26E-AFCDBDA7A2E8}
- SRS3_SYSFX_MFX_CLSID
{134DDB7A-41FC-40E6-8D6B-E284C51D160E}
- SRS3_SYSFX_EFX_CLSID
{7B4BF64E-D05D-481D-97CC-C0829AC9280F}
- KSNODETYPE_SPEAKER
{DFF21CE1-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_HEADPHONES
{DFF21CE2-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_SPDIF_INTERFACE
{DFF21FE5-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_HDMI_INTERFACE
{D1B9CC2A-F519-417F-91C9-55FA65481001}
- KSNODETYPE_ANY
{00000000-0000-0000-0000-000000000000}
- KSNODETYPE_LINE_CONNECTOR
{DFF21FE3-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_MICROPHONE
{DFF21BE1-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_MICROPHONE_ARRAY
{DFF21BE5-F70F-11D0-B917-00A0C9223196}
- KSNODETYPE_SUM
{DA441A60-C556-11D0-8A2B-00A0C9255AC1}
- PKEY_FX_Association
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},0
- PKEY_FX_PreMixClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},1
- PKEY_FX_PostMixClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},2
- PKEY_FX_UiClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},3
- PKEY_DisplayName
{D04E05A6-594B-4FB6-A80D-01AF5EED7D1D},4
- PKEY_ItemNameDisplay
{B725F130-47EF-101A-A5F1-02608C9EEBAC},10
- PKEY_AudioEndpoint_Disable_SysFx
{1da5d803-d492-4edd-8c23-e0c0ffee7f0e},5
- PKEY_AudioEndpoint_Ext_UiClsid
{1DA5D803-D492-4EDD-8C23-E0C0FFEE7F0E},1
- PKEY_AudioEndpoint_Association
{1DA5D803-D492-4EDD-8C23-E0C0FFEE7F0E},2
- PKEY_AudioEngine_OEMFormat
{E4870E26-3CC5-4CD2-BA46-CA0A9A70ED04},3
- PKEY_Device_Type
{34F9EAF0-F3FF-11DD-AC1D-B27C55D89593},0
- PKEY_AudioEngine_DeviceFormat
{F19F064D-082C-4E27-BC73-6882A1BB8E4C},0
- PKEY_AudioEndpoint_Supports_EventDriven_Mode
{1DA5D803-D492-4EDD-8C23-E0C0FFEE7F0E},7
- PKEY_Endpoint_ID
{A4A2C5A8-D979-4939-B4D5-AA85D6F08162},0
- PKEY_Endpoint_Enable_LFX
{a988f78b-07b6-4f47-9c9f-25409534cdee},0
- PKEY_Endpoint_Enable_LFX_BEAMFORMING
{818d3b4c-2bbf-40e9-a438-9361b0ffc427},0
- PKEY_Endpoint_Enable_LFX_AEC
{7996efb2-29c1-4898-be83-4a3646e06fac},0
- PKEY_Endpoint_Enable_GFX
{7f73d4e1-91e3-4490-9fba-5e86680a5748},0
- SYSFX_UI_CLSID
{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}
- SYSFX_PREMIX_CLSID
{19A120F2-EB17-4913-B7F0-C79704811600}
- SYSFX_POSTMIX_CLSID
{C21FE761-A4DE-4060-B707-0E0C04811600}
- SYSFX_FriendlyName
CnxtDSP System Effect
- FX_UI_CLSID
{5860E1C5-F95C-4a7a-8EC8-8AEF24F379A1}
- FX_PREMIX_CLSID
{62dc1a93-ae24-464c-a43e-452f824c4250}
- FX_POSTMIX_CLSID
{637c490d-eee3-4c0a-973f-371958802da2}
- FX_FriendlyName
Microsoft Audio Home Theater Effects
- CNXT_UI_CLSID
{5E344C16-0672-4a5c-88E7-25D7F3026C87}
- DesDigiMicBoost_CLSID
{4d8b5a4e-4f8b-4be5-b109-4b7214611257},2
- PAGE_MASTER_UI_CLSID
{AA747400-B9F8-4D7F-B41C-F8CF3047A0DB}
- PKEY_PAGE_MASTER_PAGE_0
{AA747400-B9F8-4D7F-B41C-F8CF3047A0DB},0
- PKEY_PAGE_MASTER_PAGE_1
{AA747400-B9F8-4D7F-B41C-F8CF3047A0DB},1
- PKEY_PAGE_MASTER_PAGE_2
{AA747400-B9F8-4D7F-B41C-F8CF3047A0DB},2
- ToshibaFxSPK_POSTMIX_CLSID
{0230C6C9-7038-4E8F-942D-D0316F813BAB}
- ToshibaFxHP_POSTMIX_CLSID
{444D30F3-998E-41AE-A182-57B60AB9F783}
- ToshibaFxSPKHP_POSTMIX_CLSID
{2896004F-3AAB-4A25-8C81-846E659BB1EE}
- TADE_UI_CLSID
{060E316C-C62D-4113-93CB-C01DFAC08EEF}
- FMEp_EXT_UI_CLSID
{46a32db0-78ed-11dc-8314-0800200c9a66}
- FMFx_UI_CLSID
{504225f4-78ed-11dc-8314-0800200c9a66}
- FMFx_PREMIX_CLSID
{4a7113f4-78ec-11dc-8314-0800200c9a66}
- FMFx_POSTMIX_CLSID
{0bdc9ab6-78ed-11dc-8314-0800200c9a66}
- FMFx_CAP_CLSID
{70306ef0-7851-11dc-8314-0800200c9a66}
- FMFx_K1_CLSID
{2b24be42-a892-11dc-8314-0800200c9a66},1
- FMFx_K2_CLSID
{2b24be42-a892-11dc-8314-0800200c9a66},2
- FMFx_K3_CLSID
{2b24be42-a892-11dc-8314-0800200c9a66},3
- FMFx_K7_CLSID
{2b24be42-a892-11dc-8314-0800200c9a66},7
- FMFx_FriendlyName
Fortemedia SAMSoft APO
- RenPluginLFX
Settings\Plugins\Render\LFX
- RenPluginGFX
Settings\Plugins\Render\GFX
- CapPluginLFX
Settings\Plugins\Capture\LFX
- CXFx_VOIP_PLUGIN_CLSID
{0000000d-0000-0001-4000-018664542698}
- PKEY_FX_StreamEffectClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},5
- PKEY_FX_ModeEffectClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},6
- PKEY_FX_EndpointEffectClsid
{D04E05A6-594B-4fb6-A80D-01AF5EED7D1D},7
- PKEY_SFX_ProcessingModes_Supported_For_Streaming
{D3993A3F-99C2-4402-B5EC-A92A0367664B},5
- PKEY_MFX_ProcessingModes_Supported_For_Streaming
{D3993A3F-99C2-4402-B5EC-A92A0367664B},6
- PKEY_EFX_ProcessingModes_Supported_For_Streaming
{D3993A3F-99C2-4402-B5EC-A92A0367664B},7
- AUDIO_SIGNALPROCESSINGMODE_DEFAULT
{C18E2F7E-933D-4965-B7D1-1EEF228D2AF3}
- AUDIO_SIGNALPROCESSINGMODE_RAW
{9E90EA20-B493-4FD1-A1A8-7E1361A956CF}
- AUDIO_SIGNALPROCESSINGMODE_SPEECH
{FC1CFC9B-B9D6-4CFA-B5E0-4BB2166878B2}
- AUDIO_SIGNALPROCESSINGMODE_COMMUNICATIONS
{98951333-B9CD-48B1-A0A3-FF40682D73F7}
- FX_STREAM_CLSID
{B48DEA3F-D962-425a-8D9A-9A5BB37A9904}
- FX_MODE_CLSID
{06687E71-F043-403A-BF49-CB591BA6E103}
- PKEY_Capture_Unknown1
{e4870e26-3cc5-4cd2-ba46-ca0a9a70ed04},1
- PKEY_Capture_Unknown2
{b3f8fa53-0004-438e-9003-51a46e139bfc},4
- PKEY_Capture_Unknown3
{b3f8fa53-0004-438e-9003-51a46e139bfc},3
- PKEY_Capture_Unknown4
{3d6e1656-2e50-4c4c-8d85-d0acae3c6c68},3
- PKEY_Capture_Unknown5
{e4870e26-3cc5-4cd2-ba46-ca0a9a70ed04},0
- PKEY_Capture_Unknown6
{624f56de-fd24-473e-814a-de40aacaed16},3
- PKEY_Capture_Unknown7
{3d6e1656-2e50-4c4c-8d85-d0acae3c6c68},2
- DriverMfgr
Conexant
- ProductName
Conexant High Definition SmartAudio
- DriverVersionID
8.66.47
- DriverBuildDate
03/20/2017
- DriverBuildID
8.66.47.53
- INFVersionID
8.66.47.53-000
- DriverFamily
Audio
- DriverProduct
SmartAudio
- DriverDescription
Audio Driver
- DriverMfgrVersion
x00
- UCI_APP_PATH
Conexant\Install\Audio