[vs2099]

Hello everyone!

I want to distinguish shutdown or reboot in kernel mode.

How can I do? IRP_MJ_SHUTDOWN with no parameter, IRP_MJ_POWER is to late.

[EP_X0FF]

https://msdn.microsoft.com/en-us/librar ... s.85).aspx

[vs2099]

https://msdn.microsoft.com/en-us/librar ... s.85).aspx

I cannot judge shutdown or reboot in ShutdownDispatch.

[EP_X0FF]

There is the field in IRP describing power action

Irp->Parameters.Power.ShutdownType

you can try check it if it works in this callback.

According to msdn IRP_MJ_POWER -> IRP_MN_SET_POWER -> Irp->Parameters.Power.ShutdownType

[vs2099]

There is the field in IRP describing power action

Irp->Parameters.Power.ShutdownType

you can try check it if it works in this callback.

According to msdn IRP_MJ_POWER -> IRP_MN_SET_POWER -> Irp->Parameters.Power.ShutdownType

Not useful.

[vs2099]

There is the field in IRP describing power action

Irp->Parameters.Power.ShutdownType

you can try check it if it works in this callback.

According to msdn IRP_MJ_POWER -> IRP_MN_SET_POWER -> Irp->Parameters.Power.ShutdownType

I fill DriverObject->MajorFunction[IRP_MJ_POWER] to my dispatch function, But I can't get the call, could you tell me why.

[Brock]

vs2099,

You have to register with a call to IoRegisterShutdownNotification(), are you doing this?

[vs2099]

vs2099,

You have to register with a call to IoRegisterShutdownNotification(), are you doing this?

YES, i have already register shutdown notification.
I can get DispatchShudown call, but not DispatchPower call.

[feryno]

I fill DriverObject->MajorFunction[IRP_MJ_POWER] to my dispatch function, But I can't get the call, could you tell me why.

I had the same problem according IRP_MJ_POWER few years ago. This may be helpful:
https://www.winvistatips.com/threads/ma ... ed.182097/
I was unable to made MJ_POWER to work in my driver at the end (maybe I did not try hard enough), so I had to do an alternative approach, but that seems not be useful to you according the name of this thread (it was enough to me, because distinguishing shutdown/reboot did not play any role in my project)
http://blogs.msdn.com/b/doronh/archive/ ... 30493.aspx
If you succeed in MJ_POWER please report it. Otherwise you could still try an alternative way.

[Vrtule]

You definitely can create a PnP device (https://msdn.microsoft.com/en-us/librar ... s.85).aspx) but it may need to handle some extra PnP/Power requests.

EDIT
Perhaps, PoSetPowerState on your control device object may do the job. But I did not test it, I have some experience with power IRPs only from the PnP world.