Hello Matthew, Now KsTopTest_Win7.exe shows the "device type is unknown" error in some tests (KsTopTest from WLK 1.6.8367 didn't show such error). How to interpret it? Start Case: ID 16.1007:1.1 : KS Topology Filters\KS Nodes\All Nodes Pin I/O Count:[Tue May 21 13:33:52 2013] Device Name = Virtual Audio Cable PnP ID = ROOT\MEDIA\0000 Device: Virtual Audio Cable (ROOT\MEDIA\0000) Filter: Virtual Cable 1 Connection: Getting Node From/To information from Connection[0] Connection: Getting Node From/To information from Connection[1] Connection: Getting Node From/To information from Connection[2] Connection: Getting Node From/To information from Connection[3] Connection: Getting Node From/To information from Connection[4] Connection: Getting Node From/To information from Connection[5] Connection: Getting Node From/To information from Connection[6] Connection: Getting Node From/To information from Connection[7] Connection: Getting Node From/To information from Connection[8] Connection: Getting Node From/To information from Connection[9] Connection: Getting Node From/To information from Connection[10] Connection: Getting Node From/To information from Connection[11] Connection: Getting Node From/To information from Connection[12] Node: Node[0] (KSNODETYPE_SUM) has 3 inputs and 1 outputs ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) Node: Node[1] (KSNODETYPE_VOLUME) has 1 inputs and 1 outputs Node: Node[2] (KSNODETYPE_MUTE) has 1 inputs and 1 outputs Node: Node[3] (KSNODETYPE_VOLUME) has 1 inputs and 1 outputs Node: Node[4] (KSNODETYPE_MUTE) has 1 inputs and 1 outputs Node: Node[5] (KSNODETYPE_VOLUME) has 1 inputs and 1 outputs Node: Node[6] (KSNODETYPE_MUTE) has 1 inputs and 1 outputs Node: Node[7] (KSNODETYPE_VOLUME) has 1 inputs and 1 outputs Node: Node[8] (KSNODETYPE_MUTE) has 1 inputs and 1 outputs Filter: Virtual Cable 1 Connection: Getting Node From/To information from Connection[0] Connection: Getting Node From/To information from Connection[1] Connection: Getting Node From/To information from Connection[2] Connection: Getting Node From/To information from Connection[3] Connection: Getting Node From/To information from Connection[4] Connection: Getting Node From/To information from Connection[5] Node: Node[0] (KSNODETYPE_VOLUME) has 1 inputs and 1 outputs Node: Node[1] (KSNODETYPE_SRC) has 1 inputs and 1 outputs Node: Node[2] (KSNODETYPE_DAC) has 1 inputs and 1 outputs Node: Node[3] (KSNODETYPE_ADC) has 1 inputs and 1 outputs End Case: ID 16.1007:1.1 : FAIL : KS Topology Filters\KS Nodes\All Nodes Pin I/O Count : [Tue May 21 13:33:52 2013] Start Case: ID 16.1007:3.5 : KS Topology Filters\KS Pins\Check KSPROPERTY_JACK_DESCRIPTION:[Tue May 21 13:38:29 2013] Device Name = Virtual Audio Cable PnP ID = ROOT\MEDIA\0000 Device: Virtual Audio Cable (ROOT\MEDIA\0000) Filter: Virtual Cable 1 Pin[00] () Pin[01] (Line 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) KSPROPERTY_JACK_DESCRIPTION supported Pin[02] () Pin[03] (Mic 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) KSPROPERTY_JACK_DESCRIPTION supported Pin[04] (Line 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) KSPROPERTY_JACK_DESCRIPTION supported Pin[05] (S/PDIF 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) KSPROPERTY_JACK_DESCRIPTION supported Filter: Virtual Cable 1 Pin[00] () Pin[01] () Pin[02] () Pin[03] () End Case: ID 16.1007:3.5 : FAIL : KS Topology Filters\KS Pins\Check KSPROPERTY_JACK_DESCRIPTION : [Tue May 21 13:38:29 2013] Start Case: ID 16.1007:3.6 : KS Topology Filters\KS Pins\Check KSPROPERTY_JACK_DESCRIPTION2:[Tue May 21 13:38:29 2013] Device Name = Virtual Audio Cable PnP ID = ROOT\MEDIA\0000 Device: Virtual Audio Cable (ROOT\MEDIA\0000) Filter: Virtual Cable 1 Pin[00] () Pin[01] (Line 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) Bytes in KSPROPERTY_JACK_DESCRIPTION2 response: 16 KSPROPERTY_JACK_DESCRIPTION2 response: KSMULTIPLE_ITEM.Size = 16, KSMULTIPLE_ITEM.Count = 1 KSJACK_DESCRIPTION2 #1: DeviceStateInfo (Reserved) = 0x00000000, JackCapabilities = 0x00000001 Pin[02] () Pin[03] (Mic 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) Bytes in KSPROPERTY_JACK_DESCRIPTION2 response: 16 KSPROPERTY_JACK_DESCRIPTION2 response: KSMULTIPLE_ITEM.Size = 16, KSMULTIPLE_ITEM.Count = 1 KSJACK_DESCRIPTION2 #1: DeviceStateInfo (Reserved) = 0x00000000, JackCapabilities = 0x00000001 Pin[04] (Line 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) Bytes in KSPROPERTY_JACK_DESCRIPTION2 response: 16 KSPROPERTY_JACK_DESCRIPTION2 response: KSMULTIPLE_ITEM.Size = 16, KSMULTIPLE_ITEM.Count = 1 KSJACK_DESCRIPTION2 #1: DeviceStateInfo (Reserved) = 0x00000000, JackCapabilities = 0x00000001 Pin[05] (S/PDIF 1) ERROR: device type is unknown ("ROOT\MEDIA\0000") (hr = S_OK) Bytes in KSPROPERTY_JACK_DESCRIPTION2 response: 16 KSPROPERTY_JACK_DESCRIPTION2 response: KSMULTIPLE_ITEM.Size = 16, KSMULTIPLE_ITEM.Count = 1 KSJACK_DESCRIPTION2 #1: DeviceStateInfo (Reserved) = 0x00000000, JackCapabilities = 0x00000001 Filter: Virtual Cable 1 Pin[00] () Pin[01] () Pin[02] () Pin[03] () End Case: ID 16.1007:3.6 : FAIL : KS Topology Filters\KS Pins\Check KSPROPERTY_JACK_DESCRIPTION2 : [Tue May 21 13:38:29 2013] Regards, Eugene ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/