IOCTL_USB_USER_REQUEST IOCTL (usbuser.h)
The IOCTL_USB_USER_REQUEST I/O control request is available to both user-mode applications and kernel-mode drivers.
IOCTL_USB_USER_REQUEST is a user-mode I/O control request. This request targets the USB host controller (GUID_DEVINTERFACE_USB_HOST_CONTROLLER).
Callers can specify any of the following request codes:
- USBUSER_CLEAR_ROOTPORT_FEATURE
- Do not use this request.
- USBUSER_GET_CONTROLLER_DRIVER_KEY
- Reports the host controller driver key in a USB_UNICODE_NAME-typed Unicode string. This request is always enabled.
- USBUSER_GET_CONTROLLER_INFO_0
- Retrieves a USB_CONTROLLER_INFO_0 structure that describes the host controller. This request is always enabled.
- USBUSER_GET_ROOTPORT_STATUS
- Do not use this request.
- USBUSER_GET_ROOTHUB_SYMBOLIC_NAME
- Reports the root hub symbolic name in a USB_UNICODE_NAME-typed Unicode string. This request is always enabled.
- USBUSER_INVALID_REQUEST
- Do not use this request.
- USBUSER_OP_CLOSE_RAW_DEVICE
- Do not use this request.
- USBUSER_OP_OPEN_RAW_DEVICE
- Do not use this request.
- USBUSER_OP_MASK_DEVONLY_API
- Do not use this request.
- USBUSER_OP_MASK_HCTEST_API
- Do not use this request.
- USBUSER_OP_RAW_RESET_PORT
- Do not use this request.
- USBUSER_OP_SEND_ONE_PACKET
- Do not use this request.
- USBUSER_OP_SEND_RAW_COMMAND
- Do not use this request.
- USBUSER_SET_ROOTPORT_FEATURE
- Do not use this request.
- USBUSER_PASS_THRU
- Sends a vendor specific command that is defined by the USB_PASS_THRU_PARAMETERS structure to the host controller miniport driver. This request is always enabled.
- USBUSER_GET_BANDWIDTH_INFORMATION
- Retrieves a USB_BANDWIDTH_INFO structure that contains information about the allocated bandwidth. This request is always enabled.
- USBUSER_GET_POWER_STATE_MAP
- Retrieves a USB_POWER_INFO structure that contains information about the power state of the host controller and root hubs. This request is always enabled.
- USBUSER_GET_BUS_STATISTICS_0
- Retrieves a USB_BUS_STATISTICS_0 structure that contains bus statistics. This request is always enabled.
- USBUSER_GET_BUS_STATISTICS_0_AND_RESET
- Do not use this request.
- USBUSER_GET_USB_DRIVER_INFORMATION
- Retrieves a USB_DRIVER_VERSION_PARAMETERS structure that indicates the version of the driver, USB stack, and associated interfaces. This request is always enabled.
- USBUSER_GET_USB2_HW_VERSION
- Do not use this request.
Input buffer
The buffer at Irp->AssociatedIrp.SystemBuffer contains a user request header structure (USBUSER_REQUEST_HEADER) that defines the request. Following the header structure is a structure that holds the parameters of the request. For more information about the parameter structures that correspond to each request, see the description of each request.
Input buffer length
The size of a USBUSER_REQUEST_HEADER structure.
Output buffer
A parameter structure immediately follows the USBUSER_REQUEST_HEADER structure at Irp->AssociatedIrp.SystemBuffer. For some user requests, the parameter structure will contain output data when the request completes.
Output buffer length
The length of the parameter structure.
Requirements
| Requirement | Value |
|---|---|
| Header | usbuser.h (include Usbuser.h) |