CM_SERIAL_DEVICE_DATA structure (wdm.h)

The CM_SERIAL_DEVICE_DATA structure defines a device-type-specific data record that is stored in the \Registry\Machine\Hardware\Description tree for a serial controller if the system can collect this information during the boot process.

Syntax

typedef struct _CM_SERIAL_DEVICE_DATA {
  USHORT Version;
  USHORT Revision;
  ULONG  BaudClock;
} CM_SERIAL_DEVICE_DATA, *PCM_SERIAL_DEVICE_DATA;

Members

Version

The version number of this structure.

Revision

The revision of this structure.

BaudClock

The clock baud rate, in megahertz, at which data is transferred.

Requirements

Requirement Value
Header wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)

See also

CM_PARTIAL_RESOURCE_DESCRIPTOR

IoQueryDeviceDescription

IoReportResourceUsage