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From: Gary Li on 24 Apr 2010 20:04
Do you mean QueryDeviceCapabilities() in audio WaveRT miniport API?
That is the chance our audio driver may modify DEVICE_CAPABILITIES
typedef struct _DEVICE_CAPABILITIES {
USHORT Size;
USHORT Version;
ULONG DeviceD1 :1;
ULONG DeviceD2 :1;
ULONG LockSupported :1;
ULONG EjectSupported :1;
ULONG Removable :1;
ULONG DockDevice :1;
ULONG UniqueID :1;
ULONG SilentInstall :1;
ULONG RawDeviceOK :1;
ULONG SurpriseRemovalOK :1;
ULONG WakeFromD0 :1;
ULONG WakeFromD1 :1;
ULONG WakeFromD2 :1;
ULONG WakeFromD3 :1;
ULONG HardwareDisabled :1;
ULONG NonDynamic :1;
ULONG WarmEjectSupported :1;
ULONG NoDisplayInUI :1;
ULONG Reserved1 :1;
ULONG Reserved :13;
ULONG Address;
ULONG UINumber;
DEVICE_POWER_STATE DeviceState[POWER_SYSTEM_MAXIMUM];
SYSTEM_POWER_STATE SystemWake;
DEVICE_POWER_STATE DeviceWake;
ULONG D1Latency;
ULONG D2Latency;
ULONG D3Latency;
} DEVICE_CAPABILITIES, *PDEVICE_CAPABILITIES;
However, by reading the definitions of each field, I could find not anyone
may affect "disable" option in device manager.
Could you point out more clue?

Thanks

-Gary

"Maxim S. Shatskih" wrote:

> > Does DriverUnload(), or PnP IRPs affect disableable feature?
>
> Yes, "query capabilities" one.
>
> --
> Maxim S. Shatskih
> Windows DDK MVP
> maxim(a)storagecraft.com
> http://www.storagecraft.com
>
> .
>
From: Gary Li on 24 Apr 2010 20:07
Could you say it more specificly?
Which portion of device or driver may affect this feature?

Thanks

-Gary

"Doron Holan [MSFT]" wrote:

> the HW ID is not the important part, it is other methods/properties that
> acpi exposes for the device or the driver itself which is doing this at
> runtime
>
> d
>
> --
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>
> "Gary Li" <garyli(a)verizon.net> wrote in message
> news:70D9D3A8-2841-4374-A12B-681768E477C1(a)microsoft.com...
> > The device was enumerated by ACPI with PnP ID = ACPI\xxxx
> > However, another driver with similar ID can be disabled.
> > Does DriverUnload(), or PnP IRPs affect disableable feature?
> >
> > -Gary
> >
> > "Doron Holan [MSFT]" wrote:
> >
> >> a driver or ACPI can be indicating that the device is not disableable
> >>
> >> d
> >>
> >> --
> >>
> >> This posting is provided "AS IS" with no warranties, and confers no
> >> rights.
> >>
> >>
> >> "Gary Li" <garyli(a)verizon.net> wrote in message
> >> news:52F34F4D-26E0-4112-84E1-ED84205ED0DA(a)microsoft.com...
> >> > I custimized an audio driver based on AC97 sample in WDK, but it does
> >> > not
> >> > expose "disable" in properties of my device in device manager.
> >> > Is it because my driver missed anything, or how to make the option show
> >> > up.
> >> >
> >> > Thanks
> >> >
> >> > -Gary Li
> >>
> >> .
> >>
> .
>
From: Maxim S. Shatskih on 25 Apr 2010 12:37
> However, by reading the definitions of each field, I could find not anyone
> may affect "disable" option in device manager.

Sorry, this is IoInvalidateDeviceState and MN_QUERY_DEVICE_STATE, not the capabilities.

--
Maxim S. Shatskih
Windows DDK MVP
maxim(a)storagecraft.com
http://www.storagecraft.com

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