IOCTL_UCMTCPCI_PORT_CONTROLLER_SET_MESSAGE_HEADER_INFO IOCTL (ucmtcpciportcontrollerrequests.h)
Sets the value of the MESSAGE_HEADER_INFO Register defined as per the Universal Serial Bus Type-C Port Controller Interface Specification.
Major code
Input buffer
A pointer to a UCMTCPCI_PORT_CONTROLLER_SET_MESSAGE_HEADER_INFO_IN_PARAMS structure. To get the structure, call WdfRequestRetrieveInputBuffer by passing the received framework request object.
Input buffer length
The size of the UCMTCPCI_PORT_CONTROLLER_SET_MESSAGE_HEADER_INFO_IN_PARAMS structure.
Status block
Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful. Otherwise, Status to the appropriate error condition as a NTSTATUS code.
Remarks
The UcmTcpciCx class extension sends this IOCTL request to set the value of the VBUS_VOLTAGE_ALARM_LO_CFG Register. The value to set is provided in the supplied structure. After setting the value in the register, client driver must call WdfRequestComplete to complete the request.
Requirements
| Requirement | Value |
|---|---|
| Header | ucmtcpciportcontrollerrequests.h |
See also
Creating IOCTL Requests in Drivers
WdfIoTargetSendInternalIoctlOthersSynchronously
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