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WinUsb Device suspend and resume

VarunVarun Member Posts: 12

What is the way to suspend the device having winusb as a functional driver?

I am using WinUsb_SetPowerPolicy () to set the powerpolicy and to suspend the device, but I am not getting any success.

Below is code:

ULONG Delay = 10000;

    if (WinUsb_SetPowerPolicy(WinusbHandle, SUSPEND_DELAY, sizeof(Delay), &Delay))
        OutputDebugString(TEXT(Device put in suspend mode"));

WinUsb_SetPowerPolicy is returing success and I am getting the print. But when I check the device after 10secs, it is not in suspended state, the device still shows in D0 state.

I am trying to do this from a windows service.

What am I missing here?


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