NDIS lowerfilter

Hi dear all,
following is a dump of my NIC driver

lkd> !devstack 0x82b97570
!DevObj !DrvObj !DevExt ObjectName
820591b0 \Driver\e1express 82059268
{7D5334B4-DB38-4F09-8F51-5080936A31F3}
82b9f568 \Driver\ACPI 82b71978 00000054

82b97570 \Driver\PCI 82b97628 NTPNP_PCI0003
!DevNode 82be1168 :
DeviceInst is
“PCI\VEN_8086&DEV_1049&SUBSYS_20DE17AA&REV_03\3&b1bfb68&0&C8”
ServiceName is “e1express”
it seems there is a lowerfilter in stack \Driver\ACPI , but it neither the
class filter nor device filter because I can’t find the registry definition
. how to explain this ? many thanks

“yushang” wrote in message news:xxxxx@ntdev…
> Hi dear all,
> following is a dump of my NIC driver
>
> lkd> !devstack 0x82b97570
> !DevObj !DrvObj !DevExt ObjectName
> 820591b0 \Driver\e1express 82059268
> {7D5334B4-DB38-4F09-8F51-5080936A31F3}
> 82b9f568 \Driver\ACPI 82b71978 00000054
>> 82b97570 \Driver\PCI 82b97628 NTPNP_PCI0003
> !DevNode 82be1168 :
> DeviceInst is
> “PCI\VEN_8086&DEV_1049&SUBSYS_20DE17AA&REV_03\3&b1bfb68&0&C8”
> ServiceName is “e1express”
> it seems there is a lowerfilter in stack \Driver\ACPI , but it neither the
> class filter nor device filter because I can’t find the registry
> definition
> . how to explain this ? many thanks

ACPI does not use the registry way of installing filters.
But it is there, and filters all PCI devices, since your machine has ACPI.

-pa

Did you mean ACPI can hook into the PnP driver loading process ? Is it a
undocumented mechanism ?

2010/6/4 Pavel A.

> “yushang” wrote in message news:xxxxx@ntdev…
>
> Hi dear all,
>> following is a dump of my NIC driver
>>
>> lkd> !devstack 0x82b97570
>> !DevObj !DrvObj !DevExt ObjectName
>> 820591b0 \Driver\e1express 82059268
>> {7D5334B4-DB38-4F09-8F51-5080936A31F3}
>> 82b9f568 \Driver\ACPI 82b71978 00000054
>>
>>> 82b97570 \Driver\PCI 82b97628 NTPNP_PCI0003
>>>
>> !DevNode 82be1168 :
>> DeviceInst is
>> “PCI\VEN_8086&DEV_1049&SUBSYS_20DE17AA&REV_03\3&b1bfb68&0&C8”
>> ServiceName is “e1express”
>> it seems there is a lowerfilter in stack \Driver\ACPI , but it neither the
>> class filter nor device filter because I can’t find the registry
>> definition
>> . how to explain this ? many thanks
>>
>
> ACPI does not use the registry way of installing filters.
> But it is there, and filters all PCI devices, since your machine has ACPI.
>
> -pa
>
>
>
>
> —
> NTDEV is sponsored by OSR
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> For our schedule of WDF, WDM, debugging and other seminars visit:
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>

Yes and yes.
-pa

“yushang” wrote in message news:xxxxx@ntdev…
> Did you mean ACPI can hook into the PnP driver loading process ? Is it a
> undocumented mechanism ?
>
> 2010/6/4 Pavel A.
>
>> “yushang” wrote in message news:xxxxx@ntdev…
>>
>> Hi dear all,
>>> following is a dump of my NIC driver
>>>
>>> lkd> !devstack 0x82b97570
>>> !DevObj !DrvObj !DevExt ObjectName
>>> 820591b0 \Driver\e1express 82059268
>>> {7D5334B4-DB38-4F09-8F51-5080936A31F3}
>>> 82b9f568 \Driver\ACPI 82b71978 00000054
>>>
>>>> 82b97570 \Driver\PCI 82b97628 NTPNP_PCI0003
>>>>
>>> !DevNode 82be1168 :
>>> DeviceInst is
>>> “PCI\VEN_8086&DEV_1049&SUBSYS_20DE17AA&REV_03\3&b1bfb68&0&C8”
>>> ServiceName is “e1express”
>>> it seems there is a lowerfilter in stack \Driver\ACPI , but it neither
>>> the
>>> class filter nor device filter because I can’t find the registry
>>> definition
>>> . how to explain this ? many thanks
>>>
>>
>> ACPI does not use the registry way of installing filters.
>> But it is there, and filters all PCI devices, since your machine has
>> ACPI.
>>
>> -pa
>>
>>
>>
>>
>> —
>> NTDEV is sponsored by OSR
>>
>> For our schedule of WDF, WDM, debugging and other seminars visit:
>> http://www.osr.com/seminars
>>
>> To unsubscribe, visit the List Server section of OSR Online at
>> http://www.osronline.com/page.cfm?name=ListServer
>>
>