// ucmtcpciportcontrollerrequests.h

// CTL_CODE(0x0058, 0x015, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_UCMTCPCI_PORT_CONTROLLER_ALTERNATE_MODE_ENTERED 0x00588054
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Windows Driver Kit DDI reference (ni-ucmtcpciportcontrollerrequests-ioctl_ucmtcpci_port_controller_alternate_mode_entered)

IOCTL_UCMTCPCI_PORT_CONTROLLER_ALTERNATE_MODE_ENTERED IOCTL

Description

Notifies the client driver that an alternate mode is entered so that the driver can perform additional tasks.

Parameters

Major code

Input buffer

A pointer to a UCMTCPCI_PORT_CONTROLLER_ALTERNATE_MODE_ENTERED_IN_PARAMS structure that contains information about the alternate mode.

Input buffer length

The size of UCMTCPCI_PORT_CONTROLLER_ALTERNATE_MODE_ENTERED_IN_PARAMS.

Output buffer

Output buffer length

Input/output buffer

Input/output buffer length

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 when an alternate mode is entered. The client driver can determine the alternate mode that was entered based on the values passed in SVID and Mode of the supplied structure.

IOCTL_UCMTCPCI_PORT_CONTROLLER_ALTERNATE_MODE_ENTERED - NtDoc