// usb.h

typedef enum _USBD_PIPE_TYPE {
  UsbdPipeTypeControl,
  UsbdPipeTypeIsochronous,
  UsbdPipeTypeBulk,
  UsbdPipeTypeInterrupt
} USBD_PIPE_TYPE;
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Windows Driver Kit DDI reference (ne-usb-_usbd_pipe_type)

_USBD_PIPE_TYPE enumeration

Description

The USBD_PIPE_TYPE enumerator indicates the type of pipe.

Constants

`UsbdPipeTypeControl`

Indicates that the pipe is a control pipe.

`UsbdPipeTypeIsochronous`

Indicates that the pipe is an isochronous transfer pipe.

`UsbdPipeTypeBulk`

Indicates that the pipe is a bulk transfer pipe.

`UsbdPipeTypeInterrupt`

Indicates that the pipe is an interrupt pipe.

USBD_PIPE_TYPE - NtDoc