The Win32_SerialPort class has these properties.
Availability and status of the device.
Running or Full Power
The device is known to be in a power save mode, but its exact status is unknown.
The device is in a power save state but still functioning, and may exhibit degraded performance.
The device is not functioning, but could be brought to full power quickly.
The device is in a warning state, though also in a power save mode.
The device is paused.
The device is not ready.
The device is not configured.
The device is quiet.
If TRUE, the serial port is configured for binary data transfer. Because the Windows API does not support nonbinary mode transfers, this property must be TRUE.
Array of chip-level compatibility for the serial controller. This property describes the buffering and other capabilities of the serial controller that may be inherent in the chip hardware. The property is an enumerated integer.
Other (1)
Unknown (2)
XT/AT Compatible (3)
16450 Compatible (4)
16550 Compatible (5)
16550A Compatible (6)
8251 Compatible (160)
8251FIFO Compatible (161)
Array of free-form strings providing more detailed explanations for any of the serial controller features indicated in the Capabilities array. Note, each entry of this array is related to the entry in the Capabilities array that is located at the same index.
Short description of the object.
Win32 Configuration Manager error code.
Device is working properly.
Device is not configured correctly.
The driver for this device might be corrupted, or your system may be running low on memory or other resources. (3)
Driver for this device might be corrupted, or the system may be low on memory or other resources.
This device is not working properly. One of its drivers or your registry might be corrupted. (4)
Device is not working properly. One of its drivers or the registry might be corrupted.
The driver for this device needs a resource that Windows cannot manage. (5)
Driver for the device requires a resource that Windows cannot manage.
The boot configuration for this device conflicts with other devices. (6)
Boot configuration for the device conflicts with other devices.
Driver loader for the device is missing.
This device is not working properly because the controlling firmware is reporting the resources for the device incorrectly. (9)
Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.
Device cannot start.
Device failed.
This device cannot find enough free resources that it can use. (12)
Device cannot find enough free resources to use.
Windows cannot verify the device's resources.
This device cannot work properly until you restart your computer. (14)
Device cannot work properly until the computer is restarted.
This device is not working properly because there is probably a re-enumeration problem. (15)
Device is not working properly due to a possible re-enumeration problem.
Windows cannot identify all the resources this device uses. (16)
Windows cannot identify all of the resources that the device uses.
Device is requesting an unknown resource type.
Device drivers must be reinstalled.
Registry might be corrupted.
System failure: Try changing the driver for this device. If that does not work, see your hardware documentation. Windows is removing this device. (21)
System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.
Device is disabled.
System failure: Try changing the driver for this device. If that doesn't work, see your hardware documentation. (23)
System failure. If changing the device driver is ineffective, see the hardware documentation.
This device is not present, is not working properly, or does not have all its drivers installed. (24)
Device is not present, not working properly, or does not have all of its drivers installed.
Windows is still setting up the device.
Windows is still setting up the device.
Device does not have valid log configuration.
Device drivers are not installed.
This device is disabled because the firmware of the device did not give it the required resources. (29)
Device is disabled. The device firmware did not provide the required resources.
This device is using an Interrupt Request (IRQ) resource that another device is using. (30)
Device is using an IRQ resource that another device is using.
This device is not working properly because Windows cannot load the drivers required for this device. (31)
Device is not working properly. Windows cannot load the required device drivers.
If TRUE, the device is using a user-defined configuration.
Name of the first concrete class to appear in the inheritance chain used in the creation of an instance. When used with the other key properties of the class, the property allows all instances of this class and its subclasses to be uniquely identified.
Description of the object.
Unique identifier of the serial port with other devices on the system.
If TRUE, the error reported in LastErrorCode is now cleared.
Free-form string supplying more information about the error recorded in LastErrorCode, and information about any corrective actions that may be taken.
Date and time the object was installed. This property does not need a value to indicate that the object is installed.
Last error code reported by the logical device.
Maximum baud rate (in bits per second) supported by the serial controller.
Maximum size of the serial port driver's internal input buffer. A value of 0 (zero) indicates that no maximum value is imposed by the serial provider.
Maximum size of the serial port driver's internal output buffer. A value of 0 (zero) indicates that no maximum value is imposed by the serial provider.
Maximum number of directly addressable entities supportable by this controller. A value of 0 (zero) should be used if the number is unknown.
Label by which the object is known. When subclassed, the property can be overridden to be a key property.
If TRUE, the instances of this class were automatically discovered by the operating system. If, for example, hardware was added through Control Panel, the operating system finds instances of this class by querying hardware from the instances of this class.
Windows Plug and Play device identifier of the logical device.
Example: "*PNP030b"
Array of the specific power-related capabilities of a logical device.
This property is inherited from CIM_LogicalDevice.
The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.
The device can change its power state based on usage or other criteria.
Timed Power-On Supported
If TRUE, the device can be power-managed (can be put into suspend mode, and so on). The property does not indicate that power management features are currently enabled, only that the logical device is capable of power management.
Protocol used by the controller to access "controlled" devices.
ATA or ATAPI
Communications provider type.
The values are:
FAX Device ("FAX Device")
LAT Protocol ("LAT Protocol")
Modem Device ("Modem Device")
Network Bridge ("Network Bridge")
Parallel Port ("Parallel Port")
RS232 Serial Port ("RS232 Serial Port")
RS422 Port ("RS422 Port")
RS423 Port ("RS423 Port")
RS449 Port ("RS449 Port")
Scanner Device ("Scanner Device")
TCP/IP TelNet ("TCP/IP TelNet")
X.25 ("X.25")
Unspecified ("Unspecified")
If TRUE, the baud rate can be changed for this serial port.
If TRUE, data bits can be set for this serial port.
If TRUE, flow control can be set for this serial port.
If TRUE, parity can be set for this serial port.
If TRUE, parity checking can be set for this serial port (if parity checking is supported).
If TRUE, Received Line Signal Detect (RLSD) can be set for this serial port (if RLSD is supported).
If TRUE, stop bits can be set for this serial port.
Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive, may be functioning properly but predicting a failure in the near future). Nonoperational statuses include: "Error", "Starting", "Stopping", and "Service". The latter, "Service", could apply during mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, yet the managed element is neither "OK" nor in one of the other states.
Values include the following:
OK ("OK")
Error ("Error")
Degraded ("Degraded")
Unknown ("Unknown")
Pred Fail ("Pred Fail")
Starting ("Starting")
Stopping ("Stopping")
Service ("Service")
Stressed ("Stressed")
NonRecover ("NonRecover")
No Contact ("No Contact")
Lost Comm ("Lost Comm")
State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used.
Other (1)
Unknown (2)
Enabled (3)
Disabled (4)
Not Applicable (5)
If TRUE, 16-bit mode is supported on this serial port.
If TRUE, data terminal ready (DTR) and data set ready (DSR) signals are supported on this serial port.
If TRUE, elapsed time-outs are supported on this serial port. Elapsed timeouts track the total amount of time between data transmissions.
If TRUE, interval time-outs are supported. An interval timeout is the amount of time allowed to elapse between the arrival of each piece of data.
If TRUE, parity checking is supported on this serial port.
If TRUE, Received Line Signal Detect (RLSD) is supported on this serial port.
If TRUE, ready to send (RTS) and clear to send (CTS) signals are supported on this serial port.
If TRUE, serial port control characters are supported. These characters signal events rather than data. These characters are not displayable and are set by the driver. They include EofChar, ErrorChar, BreakChar, EventChar, XonChar, and XoffChar.
If TRUE, XON or XOFF flow-control is supported on this serial port.
If TRUE, the communications provider supports configuration of the XONor XOFF flow-control setting.
Value of the scoping computer's CreationClassName property.
Name of the scoping system.
Date and time this controller was last reset. This could mean the controller was powered down, or reinitialized.