// ucxusbdevice.h

typedef struct _USBDEVICE_UPDATE_20_HARDWARE_LPM_PARAMETERS {
  ULONG HardwareLpmEnable : 1;
  ULONG RemoteWakeEnable : 1;
  ULONG HostInitiatedResumeDurationMode : 1;
  ULONG BestEffortServiceLatency : 4;
  ULONG BestEffortServiceLatencyDeep : 4;
  ULONG L1Timeout : 8;
  ULONG Reserved : 13;
} USBDEVICE_UPDATE_20_HARDWARE_LPM_PARAMETERS;
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Windows Driver Kit DDI reference (ns-ucxusbdevice-_usbdevice_update_20_hardware_lpm_parameters)

_USBDEVICE_UPDATE_20_HARDWARE_LPM_PARAMETERS structure

Description

Contains parameters for a request to update USB 2.0 link power management (LPM). UCX passes this structure in the EVT_UCX_USBDEVICE_UPDATE callback function.

Members

`HardwareLpmEnable`

If set, indicates are request to enable hardware LPM.

`RemoteWakeEnable`

If set, indicates are request to enable remote wake signal.

`HostInitiatedResumeDurationMode`

The requested resume period.

`BestEffortServiceLatency`

The requested best effort service latency.

`BestEffortServiceLatencyDeep`

The requested best effort service latency deep.

`L1Timeout`

The requested L1 timeout.

`Reserved`

Do not use.

USBDEVICE_UPDATE_20_HARDWARE_LPM_PARAMETERS - NtDoc