UsbPlugin class

Constructors

UsbPlugin.new()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

analyzeStatusByte(int statusByte) → void

Debugging function to analyze the status byte

closeDevice(Pointer<libusb_device_handle> handle) → void

controlTransfer(Pointer<libusb_device_handle> handle, int requestType, int request, int value, int index, Pointer<UnsignedChar> data, int length, int timeout) → int

createBitDiagram(int statusByte) → String

Function to create a visual diagram of the bits of a byte

describeBit(int bitPosition, int bitValue) → String

Helper function to describe the function of each bit according to the common ESC/POS standard

detectPrinterConfiguration(int vendorId, int productId) → Future<Map<String, dynamic>>

exitUsbLibrary() → void

findAndClaimValidInterface(Pointer<libusb_device_handle>? handleNullable) → Future<Map<String, dynamic>>

getDetailedDeviceList() → List<UsbDeviceInfo>

getDevice(int vendorId, int productId) → Pointer<libusb_device>?

getDeviceDetails(int vendorId, int productId) → Map<String, dynamic>

getDeviceEndpoints(Pointer<libusb_device> device) → List<int>

getPrinterStatus(int vendorId, int productId, List<int> command, {int interfaceNumber = 0, int timeout = 10000, bool expectResponse = false, int maxResponseLength = 542}) → Future<Map<String, dynamic>>

initUsbLibrary() → int

interpretPrinterStatus(int statusByte) → void

Simple function to interpret the printer status byte for 3nStart RPT008

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

openDevice(int vendorId, int productId) → Pointer<libusb_device_handle>?

printEscPos(int vendorId, int productId, List<int> commandBytes, {int interfaceNumber = 0, int endpointAddress = 0x01, int readEndpointAddress = 0x81, int timeout = 5000, bool autoInitialize = false, bool autoCut = false, bool expectResponse = false}) → Future<Map<String, dynamic>>

printFullStatus(Map<String, dynamic> statusMap) → void

Utility function to display the full status

sendDataToPrinter(int vendorId, int productId, Uint8List data, {int interfaceNumber = 0, int timeout = 10000, bool expectResponse = false, int maxResponseLength = 256}) → Future<Map<String, dynamic>>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited