IOCTL_INTERNAL_USBFN_SET_PIPE_STATE IOCTL (usbfnioctl.h)
The class driver sends this request to set the stall state of the specified USB pipe.
Major code
IRP_MJ_INTERNAL_DEVICE_CONTROL
Input buffer
A pointer to a USBFNPIPEID type that specifies the pipe ID.
Input buffer length
The size of a USBFNPIPEID type.
Output buffer
A pointer to BOOLEAN value that specifies the stall state to set. If TRUE, USB Function Class Extension (UFX) sets the pipe to stall state; FALSE sets to clear state.
Output buffer length
The size of a BOOLEAN.
Status block
UFX completes the request with STATUS_SUCCESS.
Remarks
This request must be sent after sending the IOCTL_INTERNAL_USBFN_ACTIVATE_USB_BUS request.
UFX forwards this IOCTL request to the transfer queue created for the endpoint by UfxEndpointCreate.
Requirements
| Requirement | Value |
|---|---|
| Header | usbfnioctl.h |
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