Get KSPROPERTY_BDA_NODE_DESCRIPTORS in a Filterdriver once
in [Device Drivers]
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From: Brausewetter, Kurt on 28 Apr 2010 05:25 Ok i found it have to set the FileObjekt of the Irq's Stack "Brausewetter, Kurt" <kurt.brausewetter_nospam_(a)t-online.de> schrieb im Newsbeitrag news:u%23P465jwKHA.4636(a)TK2MSFTNGP06.phx.gbl... > Hi > i try to get the BDA Node discriptor in a device upperfilter for a BDA device. > ksProperty.Set = KSPROPSETID_BdaTopology; > ksProperty.Id = KSPROPERTY_BDA_NODE_DESCRIPTORS; > ksProperty.Flags = KSPROPERTY_TYPE_GET; > > > i test in FilterDispatchPnp after IRP_MN_START_DEVICE send Irp sync down -> > crash STOP 0000007E > after IRP_MJ_CREATE (send sync...) -> crash 7E > > now my problem is, i need this befor the first IRP_MJ_DEVICE_CONTROL comes in. > > is there any other suggestions for me > > BTW: it is posible to get the node discriptor from outer with the BDA driver > stand alone! > > thanks in advance > brause >
From: Maxim S. Shatskih on 28 Apr 2010 07:15 IoGetNextIrpStackLocation(Irp)->FileObject = FileObject; -- Maxim S. Shatskih Windows DDK MVP maxim(a)storagecraft.com http://www.storagecraft.com "Brausewetter, Kurt" <kurt.brausewetter_nospam_(a)t-online.de> wrote in message news:%23CrYxSr5KHA.5464(a)TK2MSFTNGP05.phx.gbl... > Ok i found it > have to set the FileObjekt of the Irq's Stack > > "Brausewetter, Kurt" <kurt.brausewetter_nospam_(a)t-online.de> schrieb im > Newsbeitrag news:u%23P465jwKHA.4636(a)TK2MSFTNGP06.phx.gbl... >> Hi >> i try to get the BDA Node discriptor in a device upperfilter for a BDA device. >> ksProperty.Set = KSPROPSETID_BdaTopology; >> ksProperty.Id = KSPROPERTY_BDA_NODE_DESCRIPTORS; >> ksProperty.Flags = KSPROPERTY_TYPE_GET; >> >> >> i test in FilterDispatchPnp after IRP_MN_START_DEVICE send Irp sync down -> >> crash STOP 0000007E >> after IRP_MJ_CREATE (send sync...) -> crash 7E >> >> now my problem is, i need this befor the first IRP_MJ_DEVICE_CONTROL comes in. >> >> is there any other suggestions for me >> >> BTW: it is posible to get the node discriptor from outer with the BDA driver >> stand alone! >> >> thanks in advance >> brause >> > >
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