implementation-status.md

Implementation status

The list of functions and attributes in this document is from the VISA specification. To access the spec, go to https://www.ivifoundation.org/specifications/default.html#visa-specifications then find the row labeled "VPP-4.3: The VISA Library".

This document corresponds to Revision 7.2 from May 19, 2022. Direct link to that revision: https://www.ivifoundation.org/downloads/VISA/vpp43_2022-05-19.pdf

• The Function column has a link the NI-VISA documentation for that function.
• The contents of the Purpose column is copied from the VISA specification.
• The Status column shows whether JVisa has an abstracted wrapper method for the function.
  • "Not written" means I haven't written a wrapper method but could write one in the future.
  • "Won't implement" means the functionality should be written in your Java program.

3.3.1 Lifecycle Operations

VISA spec section	Function	Purpose	Status
3.3.1.1	viClose()	Close the specified session, event, or find list.	✅ Used in JVisaResourceManager.close(), JVisaInstrument.close(), and JVisaResourceManager.findResources().

3.4.1 Characteristic Control Operations

VISA spec section	Function	Purpose	Status
3.4.1.1	viGetAttribute()	Retrieve the state of an attribute.	✅ JVisaInstrument.getAttribute*()
3.4.1.2	viSetAttribute()	Set the state of an attribute.	✅ JVisaInstrument.setAttribute()
3.4.1.3	viStatusDesc()	Return a user-readable description of the status code passed to the operation.	✅ JVisaResourceManager.getMessageForErrorCode()

3.5.1 Asynchronous Operation Control Operations

VISA spec section	Function	Purpose	Status
3.5.1.1	viTerminate()	Request a VISA session to terminate normal execution of an operation.	Not written

3.6.2 Access Control Operations

VISA spec section	Function	Purpose	Status
3.6.2.1	viLock()	Establish an access mode to the specified resource.	Not written
3.6.2.2	viUnlock()	Relinquish a lock for the specified resource.	Not written

3.7.3 Event Operations

VISA spec section	Function	Purpose	Status
3.7.3.1	viEnableEvent()	Enable notification of a specified event.	✅ JVisaInstrument.enableEvent()
3.7.3.2	viDisableEvent()	Disable notification of an event type by the specified mechanisms.	✅ JVisaInstrument.disableEvent()
3.7.3.3	viDiscardEvents()	Discard event occurrences for specified event types and mechanisms in a session.	✅ JVisaInstrument.discardEvents()
3.7.3.4	viWaitOnEvent()	Wait for an occurrence of the specified event for a given session.	Not written
3.7.3.5	viInstallHandler()	Install handlers for event callbacks.	✅ JVisaInstrument.installHandler()
3.7.3.6	viUninstallHandler()	Uninstall handlers for events.	✅ JVisaInstrument.removeEventHandler()
3.7.3.7	viEventHandler()	Event service handler procedure prototype.	✅ interface JVisaEventCallback

4.3.3 Access Functions and Operations

VISA spec section	Function	Purpose	Status
4.3.3.1	viOpenDefaultRM()	Return a session to the Default Resource Manager resource.	✅ JVisaResourceManager constructor
4.3.3.2	viOpen()	Open a session to the specified device.	✅ JVisaResourceManager.openInstrument()
4.3.3.3	viParseRsrc()	Parse a resource string to get the interface information.	Not written
4.3.3.4	viParseRsrcEx()	Parse a resource string to get extended interface information.	✅ Used in JVisaResourceManager.getInstrumentAlias()

4.4.2 Search Operations

VISA spec section	Function	Purpose	Status
4.4.2.1	viFindRsrc()	Query a VISA system to locate the resources associated with a specified interface.	✅ JVisaResourceManager.findResources()
4.4.2.2	viFindNext()	Return the next resource found during a previous call to viFindRsrc().	✅ JVisaResourceManager.findResources()

6.1 Basic I/O Services

VISA spec section	Function	Purpose	Status
6.1.1	viRead()	Read data from device synchronously.	✅ JVisaInstrument.readBytes()
6.1.2	viReadAsync()	Read data from device asynchronously.	Not written
6.1.3	viReadToFile()	Read data synchronously, and store the transferred data in a file.	❌ Won't implement
6.1.4	viWrite()	Write data to device synchronously.	✅ JVisaInstrument.write()
6.1.5	viWriteAsync()	Write data to device asynchronously.	Not written
6.1.6	viWriteFromFile()	Take data from a file and write it out synchronously.	❌ Won't implement
6.1.7	viAssertTrigger()	Assert software or hardware trigger.	Not written
6.1.8	viReadSTB()	Read a status byte of the service request.	Not written
6.1.9	viClear()	Clear a device.	✅ JVisaInstrument.clear()

6.2 Formatted I/O Services

VISA spec section	Function	Purpose	Status
6.2.1	viSetBuf()	Set the size for the formatted I/O and/or serial communication buffer(s).	❌ Won't implement
6.2.2	viFlush()	Manually flush the specified buffers associated with formatted I/O operations and/or serial communication.	❌ Won't implement
6.2.3	viPrintf()	Convert, format, and send the parameters arg1, arg2, ... to the device as specified by the format string.	❌ Won't implement
6.2.4	viVPrintf()	Convert, format, and send params to the device as specified by the format string.	❌ Won't implement
6.2.5	viSPrintf()	Same as viPrintf(), except the data is written to a user-specified buffer rather than the device.	❌ Won't implement
6.2.6	viVSPrintf()	Same as viVPrintf(), except that the data is written to a user-specified buffer rather than a device.	❌ Won't implement
6.2.7	viBufWrite()	Similar to viWrite(), except the data is written to the formatted I/O write buffer rather than directly to the device.	❌ Won't implement
6.2.8	viScanf()	Read, convert, and format data using the format specifier. Store the formatted data in the arg1, arg2 parameters.	❌ Won't implement
6.2.9	viVScanf()	Read, convert, and format data using the format specifier. Store the formatted data in params .	❌ Won't implement
6.2.10	viSScanf()	Same as viScanf() , except that the data is read from a user-specified buffer instead of a device.	❌ Won't implement
6.2.11	viVSScanf()	Same as viVScanf(), except that the data is read from a user-specified buffer instead of a device.	❌ Won't implement
6.2.12	viBufRead()	Similar to viRead(), except that the operation uses the formatted I/O read buffer for holding data read from the device.	❌ Won't implement
6.2.13	viQueryf()	Perform a formatted write and read through a single operation invocation.	❌ Won't implement
6.2.14	viVQueryf()	Perform a formatted write and read through a single operation invocation.	❌ Won't implement

6.3 Memory I/O Services

VISA spec section	Function	Status
6.3.1	viIn8()	Not written
6.3.2	viIn16()	Not written
6.3.3	viIn32()	Not written
6.3.4	viIn64()	Not written
6.3.5	viOut8()	Not written
6.3.6	viOut16()	Not written
6.3.7	viOut32()	Not written
6.3.8	viOut64()	Not written
6.3.9	viMoveIn8()	Not written
6.3.10	viMoveIn16()	Not written
6.3.11	viMoveIn32()	Not written
6.3.12	viMoveIn64()	Not written
6.3.13	viMoveIn8Ex()	Not written
6.3.14	viMoveIn16Ex()	Not written
6.3.15	viMoveIn32Ex()	Not written
6.3.16	viMoveIn64Ex()	Not written
6.3.17	viMoveOut8()	Not written
6.3.18	viMoveOut16()	Not written
6.3.19	viMoveOut32()	Not written
6.3.20	viMoveOut64()	Not written
6.3.21	viMoveOut8Ex()	Not written
6.3.22	viMoveOut16Ex()	Not written
6.3.23	viMoveOut32Ex()	Not written
6.3.24	viMoveOut64Ex()	Not written
6.3.25	viMove()	Not written
6.3.26	viMoveEx()	Not written
6.3.27	viMoveAsync()	Not written
6.3.28	viMoveAsyncEx()	Not written
6.3.29	viMapAddress()	Not written
6.3.30	viMapAddressEx()	Not written
6.3.31	viUnmapAddress()	Not written
6.3.32	viPeek8()	Not written
6.3.33	viPeek16()	Not written
6.3.34	viPeek32()	Not written
6.3.35	viPeek64()	Not written
6.3.36	viPoke8()	Not written
6.3.37	viPoke16()	Not written
6.3.38	viPoke32()	Not written
6.3.39	viPoke64()	Not written

6.4 Shared Memory Services

VISA spec section	Function	Purpose	Status
6.4.1	viMemAlloc()	Allocate memory from a device’s memory region.	Not written
6.4.2	viMemAllocEx()	Allocate memory from a device’s memory region.	Not written
6.4.3	viMemFree()	Free memory previously allocated using viMemAlloc() or viMemAllocEx().	Not written
6.4.4	viMemFreeEx()	Free memory previously allocated using viMemAlloc() or viMemAllocEx().	Not written

6.5 Interface Specific Services

VISA spec section	Function	Purpose	Not written in JVisa
6.5.1	viGpibControlREN()	Controls the state of the GPIB REN interface line, and optionally the remote/local state of the device.	Not written
6.5.2	viGpibControlATN()	Controls the state of the GPIB ATN interface line, and optionally the active controller state of the local interface board.	Not written
6.5.3	viGpibSendIFC()	Pulse the interface clear line (IFC) for at least 100 us.	Not written
6.5.4	viGpibCommand()	Write GPIB command bytes on the bus.	Not written
6.5.5	viGpibPassControl()	Tell the GPIB device at the specified address to become controller in charge (CIC).	Not written
6.5.6	viVxiCommandQuery()	Send the device a miscellaneous command or query and/or retrieve the response to a previous query.	Not written
6.5.7	viAssertIntrSignal()	Asserts the specified device interrupt or signal.	Not written
6.5.8	viAssertUtilSignal()	Asserts the specified utility bus signal.	Not written
6.5.9	viMapTrigger()	Map the specified trigger source line to the specified destination line.	Not written
6.5.10	viUnmapTrigger()	Undo a previous map from the specified trigger source line to the specified destination line.	Not written
6.5.11	viUsbControlOut()	Send arbitrary data to the USB device on the control port.	Not written
6.5.12	viUsbControlIn()	Request arbitrary data from the USB device on the control port.	Not written
6.5.13	viPxiReserveTriggers()	Reserves multiple trigger lines that the caller can then map and/or assert.	Not written

Attributes

The VISA spec does not have a list of all attributes, so these are from NI-VISA documentation.

Global properties are specific to a resource, and local properties are specific to a session. A global property has the same value for all the sessions that are open to a specific resource. A local property can have a different value for each session to a specific resource.

https://www.ni.com/docs/en-US/bundle/labview-api-ref/page/properties-and-methods/visa/intro.html

Attribute	Description	access	Status
VI_ATTR_4882_COMPLIANT	Whether the device is 488.2 compliant.	Read Only Global	status
VI_ATTR_ASRL_ALLOW_TRANSMIT	Suspends/resumes transmission as if an XOFF/XON character has been received.	Read/Write Global	status
VI_ATTR_ASRL_AVAIL_NUM	How many bytes are available in the global receive buffer.	Read Only Global	status
VI_ATTR_ASRL_BAUD	Baud rate of the interface.	Read/Write Global	status
VI_ATTR_ASRL_BREAK_LEN	Duration of the break signal asserted when VI_ATTR_ASRL_END_OUT is set to VI_ASRL_END_BREAK.	Read/Write Local	status
VI_ATTR_ASRL_BREAK_STATE	Suspends character transmission and places the transmission line in a break state.	Read/Write Global	status
VI_ATTR_ASRL_CONNECTED	Whether the port is properly connected to another port or device.	Read Only Global	status
VI_ATTR_ASRL_CTS_STATE	Current state of the Clear To Send (CTS) input signal.	Read Only Global	status
VI_ATTR_ASRL_DATA_BITS	How many data bits are contained in each frame (from 5 to 8).	Read/Write Global	status
VI_ATTR_ASRL_DCD_STATE	Current state of the Data Carrier Detect (DCD) input signal.	Read/Write Global	status
VI_ATTR_ASRL_DISCARD_NULL	If set to VI_TRUE, NUL characters are discarded. Otherwise, they are treated as normal data characters.	Read/Write Global	status
VI_ATTR_ASRL_DSR_STATE	Current state of the Data Set Ready (DSR) input signal.	Read Only Global	status
VI_ATTR_ASRL_DTR_STATE	Current state of the Data Terminal Ready (DTR) input signal.	Read/Write Global	status
VI_ATTR_ASRL_END_IN	Method used to terminate read operations.	Read/Write Local	status
VI_ATTR_ASRL_END_OUT	Method used to terminate write operations.	Read/Write Local	status
VI_ATTR_ASRL_FLOW_CNTRL	Type of flow control used by the transfer mechanism.	Read/Write Global	status
VI_ATTR_ASRL_PARITY	Parity used with every frame transmitted and received.	Read/WriteGlobal	status
VI_ATTR_ASRL_REPLACE_CHAR	Character to be used to replace incoming characters that arrive with errors (such as parity error).	Read/Write Local	status
VI_ATTR_ASRL_RI_STATE	Current state of the Ring Indicator (RI) input signal.	Read/Write Global	status
VI_ATTR_ASRL_RTS_STATE	Used to manually assert or unassert the Request To Send (RTS) output signal.	Read/Write Global	status
VI_ATTR_ASRL_STOP_BITS	How many stop bits are used to indicate the end of a frame.	Read/Write Global	status
VI_ATTR_ASRL_WIRE_MODE	Current wire/transceiver mode.	Read/Write Global	status
VI_ATTR_ASRL_XOFF_CHAR	Value of the XOFF character used for XON/XOFF flow control (both directions).	Read/Write Local	status
VI_ATTR_ASRL_XON_CHAR	Value of the XON character used for XON/XOFF flow control (both directions).	Read/Write Local	status
VI_ATTR_BUFFER	Address of a buffer that was used in an asynchronous operation.	Read Only	status
VI_ATTR_CMDR_LA	Unique logical address of the commander of the VXI device used by the given session.	Read Only Global	status
VI_ATTR_DEST_ACCESS_PRIV	Address modifier to be used in high-level access operations when writing to the destination.	Read/Write Local	status
VI_ATTR_DEST_BYTE_ORDER	Byte order to be used in high-level access operations when writing to the destination.	Read/Write Local	status
VI_ATTR_DEST_INCREMENT	How many elements the destination offset is to be incremented by after every transfer.	Read/Write Local	status
VI_ATTR_DEV_STATUS_BYTE	488-style status byte of the local controller or device associated with this session.	Read/Write Global	status
VI_ATTR_DMA_ALLOW_EN	Whether I/O accesses should use DMA or Programmed I/O.	Read/Write Local	status
VI_ATTR_EVENT_TYPE	Unique logical identifier for the event type of the specified event.	Read Only	status
VI_ATTR_FDC_CHNL	Which Fast Data Channel (FDC) will be used to transfer the buffer.	Read/Write Local	status
VI_ATTR_FDC_MODE	Which Fast Data Channel (FDC) mode to use (either normal or stream mode).	Read/Write Local	status
VI_ATTR_FDC_USE_PAIR	Specifies to use a channel pair instead of a single channel for transferring data.	Read/Write Local	status
VI_ATTR_FILE_APPEND_EN	Whether viReadToFile() will overwrite (truncate) or append when opening a file.	Read/Write Local	status
VI_ATTR_GPIB_ADDR_STATE	Whether the specified GPIB interface is currently addressed to talk or listen, or is not addressed.	Read Only Global	status
VI_ATTR_GPIB_ATN_STATE	Current state of the GPIB ATN (ATtentioN) interface line.	Read Only Global	status
VI_ATTR_GPIB_CIC_STATE	Whether the specified GPIB interface is currently CIC (Controller In Charge).	Read Only Global	status
VI_ATTR_GPIB_HS488_CBL_LEN	Total number of meters of GPIB cable used in the specified GPIB interface.	Read/Write Global	status
VI_ATTR_GPIB_NDAC_STATE	Current state of the GPIB NDAC (Not Data ACcepted) interface line.	Read Only Global	status
VI_ATTR_GPIB_PRIMARY_ADDR	Primary address of the GPIB device used by the given session.	INSTR, MEMACC, BACKPLANE: Read Only Global. INTFC: Read/Write Global.	status
VI_ATTR_GPIB_READDR_EN	Whether to use repeat addressing before each read or write operation.	Read/Write Local	status
VI_ATTR_GPIB_RECV_CIC_STATE	Whether the local controller has gained or lost CIC status.	Read-Only	status
VI_ATTR_GPIB_REN_STATE	Current state of the GPIB REN (Remote ENable) interface line.	Read Only Global	status
VI_ATTR_GPIB_SECONDARY_ADDR	Secondary address of the GPIB device used by the given session.	INSTR, MEMACC, BACKPLANE: Read Only Global. INTFC: Read/Write Global.	status
VI_ATTR_GPIB_SRQ_STATE	Current state of the GPIB SRQ (Service ReQuest) interface line.	Read Only Global	status
VI_ATTR_GPIB_SYS_CNTRL_STATE	Whether the specified GPIB interface is currently the system controller.	Read/Write Global	status
VI_ATTR_GPIB_UNADDR_EN	Whether to unaddress the device (UNT and UNL) after each read or write operation.	Read/Write Local	status
VI_ATTR_IMMEDIATE_SERV	Whether the device associated with this session is an immediate servant of the controller running VISA.	Read Only Global	status
VI_ATTR_INTF_INST_NAME	Human-readable text that describes the given interface.	Read Only Global	status
VI_ATTR_INTF_NUM	Board number for the given interface.	Read Only Global	status
VI_ATTR_INTF_TYPE	Interface type of the given session.	Read Only Global	status
VI_ATTR_INTR_STATUS_ID	32-bit status/ID retrieved during the IACK cycle.	Read Only Global	status
VI_ATTR_IO_PROT	Which protocol to use.	Read/Write Local	status
VI_ATTR_JOB_ID	Job ID of the asynchronous operation that has completed.	Read Only	status
VI_ATTR_MAINFRAME_LA	Lowest logical address in the mainframe.	Read Only Global	status
VI_ATTR_MANF_ID	Manufacturer identification number of the device.	Read Only Global	status
VI_ATTR_MANF_NAME	Manufacturer name.	Read Only Global	status
VI_ATTR_MAX_QUEUE_LENGTH	Maximum number of events that can be queued at any time on the given session.	Read/Write Local	status
VI_ATTR_MEM_BASE/VI_ATTR_MEM_BASE_32/VI_ATTR_MEM_BASE_64	Base address of the device in VXIbus memory address space.	Read Only Global	status
VI_ATTR_MEM_SIZE/VI_ATTR_MEM_SIZE_32/VI_ATTR_MEM_SIZE_64	Size of memory requested by the device in VXIbus address space.	Read Only Global	status
VI_ATTR_MEM_SPACE	VXIbus address space used by the device.	Read Only Global	status
VI_ATTR_MODEL_CODE	Model code for the device.	Read Only Global	status
VI_ATTR_MODEL_NAME	Model name of the device.	Read Only Global	status
VI_ATTR_OPER_NAME	Name of the operation generating this event.	Read Only	status
VI_ATTR_PXI_ACTUAL_LWIDTH	PCI Express link width negotiated between the PCI Express host controller and the device.	Read Only Global	status
VI_ATTR_PXI_BUS_NUM	PCI bus number of this device.	Read Only Global	status
VI_ATTR_PXI_CHASSIS	PXI chassis number of this device.	Read Only Global	status
VI_ATTR_PXI_DEST_TRIG_BUS	Segment to use to qualify trigDest in viMapTrigger.	Read/Write Local	status
VI_ATTR_PXI_DEV_NUM	PXI device number.	Read Only Global	status
VI_ATTR_PXI_DSTAR_BUS	Differential star bus number of this device.	Read Only Global	status
VI_ATTR_PXI_DSTAR_SET	Set of PXIe DStar lines connected to the slot this device is in.	Read Only Global	status
VI_ATTR_PXI_FUNC_NUM	PCI function number of the PXI/PCI resource.	Read Only Global	status
VI_ATTR_PXI_IS_EXPRESS	Whether the device is PXI/PCI or PXI/PCI Express.	Read Only Global	status
VI_ATTR_PXI_MAX_LWIDTH	Maximum PCI Express link width of the device.	Read Only Global	status
VI_ATTR_PXI_MEM_BASE_BAR0/1/2/3/4/5	Memory base address assigned to the specified BAR.	Read Only Global	status
VI_ATTR_PXI_MEM_SIZE_BAR0/1/2/3/4/5	Memory size used by the device in the specified BAR.	Read Only Global	status
VI_ATTR_PXI_MEM_TYPE_BAR0/1/2/3/4/5	Memory type used by the device in the specified BAR (if applicable).	Read Only Global	status
VI_ATTR_PXI_RECV_INTR_DATA	The first PXI/PCI register that was read in the successful interrupt detection sequence.	Read Only	status
VI_ATTR_PXI_RECV_INTR_SEQ	Index of the interrupt sequence that detected the interrupt condition.	Read Only	status
VI_ATTR_PXI_SLOT_LBUS_LEFT	Slot number or special feature connected to the local bus left lines of this device.	Read Only Global	status
VI_ATTR_PXI_SLOT_LBUS_RIGHT	Slot number or special feature connected to the local bus right lines of this device.	Read Only Global	status
VI_ATTR_PXI_SLOT_LWIDTH	PCI Express link width of the PXI Express peripheral slot in which the device resides.	Read Only GLobal	status
VI_ATTR_PXI_SLOTPATH	Slot path of this device.	Read Only Global	status
VI_ATTR_PXI_SRC_TRIG_BUS	Segment to use to qualify trigSrc in viMapTrigger.	Read/Write Local	status
VI_ATTR_PXI_STAR_TRIG_BUS	Star trigger bus number of this device.	Read Only Global	status
VI_ATTR_PXI_STAR_TRIG_LINE	PXI_STAR line connected to this device.	Read Only Global	status
VI_ATTR_PXI_TRIG_BUS	Trigger bus number of this device.	INSTR: Read Only Global. BACKPLANE: Read/Write Local.	status
VI_ATTR_RD_BUF_OPER_MODE	Operational mode of the formatted I/O read buffer.	Read/Write Local	status
VI_ATTR_RD_BUF_SIZE	Current size of the formatted I/O input buffer for this session.	Read Only Local	status
VI_ATTR_RECV_INTR_LEVEL	VXI interrupt level on which the interrupt was received.	Read Only	status
VI_ATTR_RECV_TRIG_ID	Triggering mechanism on which the specified trigger event was received.	Read Only	status
VI_ATTR_RET_COUNT/VI_ATTR_RET_COUNT_32/VI_ATTR_RET_COUNT_64	Actual number of elements that were asynchronously transferred.	Read Only	status
VI_ATTR_RM_SESSION	Session of the Resource Manager that was used to open this session.	Read Only Local	status
VI_ATTR_RSRC_CLASS	Resource class as defined by the canonical resource name.	Read Only Global	status
VI_ATTR_RSRC_IMPL_VERSION	Uniquely identifies each of the different revisions or implementations of a resource.	Read Only Global	status
VI_ATTR_RSRC_LOCK_STATE	Current locking state of the resource.	Read Only Global	status
VI_ATTR_RSRC_MANF_ID	VXI manufacturer ID of the vendor that implemented the VISA library.	Read Only Global	status
VI_ATTR_RSRC_MANF_NAME	Manufacturer name of the vendor that implemented the VISA library.	Read Only Global	status
VI_ATTR_RSRC_NAME	Unique identifier for a resource.	Read Only Global	status
VI_ATTR_RSRC_SPEC_VERSION	Uniquely identifies the version of the VISA specification to which the implementation is compliant.	Read Only Global	status
VI_ATTR_SEND_END_EN	Whether to assert END during the transfer of the last byte of the buffer.	Read/Write Local	status
VI_ATTR_SIGP_STATUS_ID	16-bit Status/ID value retrieved during the IACK cycle or from the Signal register.	Read Only	status
VI_ATTR_SLOT	Physical slot location of the device.	Read Only Global	status
VI_ATTR_SRC_ACCESS_PRIV	Address modifier to be used in high-level access operations when reading from the source.	Read/Write Local	status
VI_ATTR_SRC_BYTE_ORDER	Byte order to be used in high-level access operations when reading from the source.	Read/Write Local	status
VI_ATTR_SRC_INCREMENT	How many elements the source offset is to be incremented by after every transfer.	Read/Write Local	status
VI_ATTR_STATUS	Return code of the operation generating this event.	Read Only	status
VI_ATTR_SUPPRESS_END_EN	Whether read will terminate due to an END condition.	Read/Write Local	status
VI_ATTR_TCPIP_ADDR	TCPIP address of the device to which the session is connected.	Read Only Global	status
VI_ATTR_TCPIP_DEVICE_NAME	LAN device name used by the VXI-11 or LXI protocol during connection.	Read Only Global	status
VI_ATTR_TCPIP_HOSTNAME	Host name of the device.	Read Only Global	status
VI_ATTR_TCPIP_KEEPALIVE	Requests that a TCP/IP provider enable the use of keep-alive packets on TCP connections.	Read/Write Local	status
VI_ATTR_TCPIP_NODELAY	Nagle algorithm is disabled when this attribute is enabled (and vice versa).	Read/Write Local	status
VI_ATTR_TCPIP_PORT	Port number for a given TCPIP address.	Read Only Global	status
VI_ATTR_TERMCHAR	Termination character.	Read/Write Local	status
VI_ATTR_TERMCHAR_EN	Whether the read operation should terminate when a termination character is received.	Read/Write Local	status
VI_ATTR_TMO_VALUE	Minimum timeout value to use when accessing the device associated with the given session.	Read/Write Local	status
VI_ATTR_TRIG_ID	Identifier for the current triggering mechanism.	Read/Write Local	status
VI_ATTR_USB_ALT_SETTING	USB alternate setting used by this USB interface.	Read/Write Global	status
VI_ATTR_USB_BULK_IN_PIPE	Endpoint address of the USB bulk-in pipe used by the given session.	Read/Write Local	status
VI_ATTR_USB_BULK_IN_STATUS	Whether the USB bulk-in pipe used by the given session is stalled or ready.	Read/Write Local	status
VI_ATTR_USB_BULK_OUT_PIPE	Endpoint address of the USB bulk-out or interrupt-out pipe used by the given session.	Read/Write Local	status
VI_ATTR_USB_BULK_OUT_STATUS	Whether the USB bulk-out or interrupt-out pipe used by the given session is stalled or ready.	Read/Write Local	status
VI_ATTR_USB_CLASS	USB class used by this USB interface.	Read Only Global	status
VI_ATTR_USB_CTRL_PIPE	Endpoint address of the USB control pipe used by the given session.	Read/Write Local	status
VI_ATTR_USB_END_IN	Method used to terminate read operations.	Read/Write Local	status
VI_ATTR_USB_INTFC_NUM	USB interface number used by the given session.	Read Only Global	status
VI_ATTR_USB_INTR_IN_PIPE	Endpoint address of the USB interrupt-in pipe used by the given session.	Read/Write Local	status
VI_ATTR_USB_INTR_IN_STATUS	Whether the USB interrupt-in pipe used by the given session is stalled or ready.	Read/Write Local	status
VI_ATTR_USB_MAX_INTR_SIZE	Maximum size of data that will be stored by any given USB interrupt.	Read/Write Local	status
VI_ATTR_USB_NUM_INTFCS	How many interfaces are supported by this USB device.	Read Only Global	status
VI_ATTR_USB_NUM_PIPES	How many pipes are supported by this USB interface.	Read Only Global	status
VI_ATTR_USB_PROTOCOL	USB protocol used by this USB interface.	Read Only Global	status
VI_ATTR_USB_RECV_INTR_DATA	Actual received data from the USB Interrupt.	Read Only	status
VI_ATTR_USB_RECV_INTR_SIZE	How many bytes of USB interrupt data are stored.	Read Only	status
VI_ATTR_USB_SERIAL_NUM	USB serial number of this device.	Read Only Global	status
VI_ATTR_USB_SUBCLASS	USB subclass used by this USB interface.	Read Only Global	status
VI_ATTR_USER_DATA/VI_ATTR_USER_DATA_32/VI_ATTR_USER_DATA_64	Store data to be used privately by the application for a particular session.	Read/Write Local	status
VI_ATTR_VXI_DEV_CLASS	VXI-defined device class to which the resource belongs.	Read Only Global	status
VI_ATTR_VXI_LA	LXI logical address.	Read Only GLobal	status
VI_ATTR_VXI_TRIG_DIR	Directions of the mapped TTL trigger lines.	Read/Write Global	status
VI_ATTR_VXI_TRIG_LINES_EN	What VXI TLL triggers have mappings.	Read/Write Global	status
VI_ATTR_VXI_TRIG_STATUS	Current state of the VXI trigger lines.	Read Only Global	status
VI_ATTR_VXI_TRIG_SUPPORT	Which VXI trigger lines this implementation supports.	Read Only GLobal	status
VI_ATTR_VXI_VME_INTR_STATUS	Current state of the VXI/VME interrupt lines.	Read Only GLobal	status
VI_ATTR_VXI_VME_SYSFAIL_STATE	Current state of the VXI/VME SYSFAIL (SYStem FAILure) backplane line.	Read Only Global	status
VI_ATTR_WIN_ACCESS	Modes in which the current window may be accessed.	Read Only Local	status
VI_ATTR_WIN_ACCESS_PRIV	Address modifier to be used in low-level access operations when accessing the mapped window.	Read/Write Local	status
VI_ATTR_WIN_BASE_ADDR/VI_ATTR_WIN_BASE_ADDR_32/VI_ATTR_WIN_BASE_ADDR_64	Base address of the interface bus to which this window is mapped.	Read Only Local	status
VI_ATTR_WIN_BYTE_ORDER	Byte order to be used in low-level access operations when accessing the mapped window.	Read/Write Local	status
VI_ATTR_WIN_SIZE/VI_ATTR_WIN_SIZE_32/VI_ATTR_WIN_SIZE_64	Size of the region mapped to this window.	Read Only Local	status
VI_ATTR_WR_BUF_OPER_MODE	Operational mode of the formatted I/O write buffer.	Read/Write Local	status
VI_ATTR_WR_BUF_SIZE	Current size of the formatted I/O output buffer for this session.	Read Only Local	status