I2C status codes

Collaboration diagram for I2C status codes:

Macros
#define	I2C_STATUS_QUEUED   (1)
	I2C transaction is queued but has not started.
#define	I2C_STATUS_SUCCESS   (0)
	Successful status code returned by I2C API.
#define	I2C_STATUS_ERROR   (-1)
	Generic error status code returned by I2C API.
#define	I2C_STATUS_UNDEFINEDCMD   (-2)
	An error status code returned by I2C_control() for undefined command codes.
#define	I2C_STATUS_TIMEOUT   (-3)
	I2C operation timed-out.
#define	I2C_STATUS_CLOCK_TIMEOUT   (-4)
	I2C serial clock line timeout.
#define	I2C_STATUS_ADDR_NACK   (-5)
	I2C target address not acknowledged.
#define	I2C_STATUS_DATA_NACK   (-6)
	I2C data byte not acknowledged.
#define	I2C_STATUS_ARB_LOST   (-7)
	I2C multi-controller arbitration lost.
#define	I2C_STATUS_INCOMPLETE   (-8)
	I2C transaction is in progress or returned without completing.
#define	I2C_STATUS_BUS_BUSY   (-9)
	I2C bus already in use by another controller. The I2C transaction. was therefore unable to start.
#define	I2C_STATUS_CANCEL   (-10)
	I2C transaction canceled by I2C_cancel().
#define	I2C_STATUS_INVALID_TRANS   (-11)
	I2C transaction is invalid. More...

Detailed Description

These macros are reservations for I2C.h.

Macro Definition Documentation

I2C_STATUS_INVALID_TRANS

#define I2C_STATUS_INVALID_TRANS   (-11)

I2C transaction is invalid.

This may occur if:

1. The I2C_Transaction.readCount and I2C_Transaction.writeCount are both set to 0.
2. A call to I2C_transfer() is made from a I2C_CallbackFxn while queued transactions are being canceled. See also: I2C_cancel().