I2C class

I2C wrapper functions for Linux userspace i2c-dev devices.

c-periphery I2C documentation.

Constructors

I2C(int busNum)
Opens the i2c-dev device at the specified path (e.g. "/dev/i2c-busNum").
I2C.isolate(String json)
Duplicates an existing I2C from a JSON string. This special constustor is used to transfer an existing I2C to an other isolate.

Properties

busNum → int
final
hashCode → int
The hash code for this object.
no setterinherited
path → String
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

dispose() → void
Releases all internal native resources.
getErrno() → int
Returns the libc errno of the last failure that occurred.
getHandle() → int
Returns the address of the internal handle.
getI2Cfd() → int
Returns the file descriptor (for the underlying i2c-dev device) of the I2C handle.
getI2Cinfo() → String
Returns a string representation of the I2C handle.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
readByte(int address) → int
Reads a byte from the I2C device with the address.
readByteReg(int address, int register) → int
Reads a byte from register of the I2C device with the address.
readBytes(int address, int len) → List<int>
Reads len bytes from the I2C device with the address.
readBytesReg(int address, int register, int len) → List<int>
Reads len bytes from register of the I2C device with the address.
readWord(int address, [BitOrder order = BitOrder.msbLast]) → int
Reads a word from the I2C device with the address and the bit order].
readWordReg(int address, int register, [BitOrder order = BitOrder.msbLast]) → int
Reads a word from register of the I2C device with the address with the bit order.
toJson() → String
Converts a I2C to a JSON string. See constructor isolate for detials.
toString() → String
A string representation of this object.
inherited
transfer(List<I2Cmsg> data) → NativeI2CmsgHelper
Transfers a list of I2Cmsg.
writeByte(int address, int byteValue) → void
Writes a byteValue to the I2C device with the address.
writeByteReg(int address, int register, int byteValue) → void
Writes a byteValue to the register of the I2C device with the address.
writeBytes(int address, List<int> byteData) → void
Writes byteData to the I2C device with the address.
writeBytesReg(int address, int register, List<int> byteData) → void
Writes byteData to the register of the I2C device with the address.
writeWord(int address, int wordValue, [BitOrder order = BitOrder.msbLast]) → void
Writes a wordValue to the I2C device with the address and the bit order.
writeWordReg(int address, int register, int wordValue, [BitOrder order = BitOrder.msbLast]) → void
Writes a wordValue to the register of the I2C device with the address and the bit order.

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

getI2CerrorCode(int value) → I2CerrorCode
Converts the native error code value to I2CerrorCode.
i2cMsgFlags2Int(I2CmsgFlags flag) → int
Converts I2CmsgFlags to the native bit mask value.