USBFN_DIRECTION - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// usbfnbase.h

typedef enum _USBFN_DIRECTION {
  UsbfnDirectionMinimum,
  UsbfnDirectionIn,
  UsbfnDirectionOut,
  UsbfnDirectionTx,
  UsbfnDirectionRx,
  UsbfnDirectionMaximum
} USBFN_DIRECTION, *PUSBFN_DIRECTION;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ne-usbfnbase-_usbfn_direction)

_USBFN_DIRECTION enumeration

Description

Defines the USB data transfer direction types.

Constants

UsbfnDirectionMinimum

The minimum value in this enumeration.

UsbfnDirectionIn

The transfer is to the host from an endpoint.

UsbfnDirectionOut

The transfer is from the host to the endpoint.

UsbfnDirectionTx

The bus transfer to the host from the device.

UsbfnDirectionRx

The bus transfer is from the host to the device.

UsbfnDirectionMaximum

The maximum value in this enumeration.

View the official Windows Driver Kit DDI reference

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