etraxi2c.h File Reference

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Macros
#define	ETRAXI2C_IOCTYPE   44
#define	I2C_WRITEARG(slave, reg, value)   (((slave) << 16) | ((reg) << 8) | (value))
#define	I2C_READARG(slave, reg)   (((slave) << 16) | ((reg) << 8))
#define	I2C_ARGSLAVE(arg)   ((arg) >> 16)
#define	I2C_ARGREG(arg)   (((arg) >> 8) & 0xff)
#define	I2C_ARGVALUE(arg)   ((arg) & 0xff)
#define	I2C_WRITEREG   0x1 /* write to an i2c register */
#define	I2C_READREG   0x2 /* read from an i2c register */

Macro Definition Documentation

#define ETRAXI2C_IOCTYPE   44

Definition at line 8 of file etraxi2c.h.

#define I2C_ARGREG

(

arg

)

(((arg) >> 8) & 0xff)

Definition at line 20 of file etraxi2c.h.

#define I2C_ARGSLAVE

(

arg

)

((arg) >> 16)

Definition at line 19 of file etraxi2c.h.

#define I2C_ARGVALUE

(

arg

)

((arg) & 0xff)

Definition at line 21 of file etraxi2c.h.

#define I2C_READARG	(		slave,
			reg
	)		(((slave) << 16) | ((reg) << 8))

Definition at line 17 of file etraxi2c.h.

#define I2C_READREG   0x2 /* read from an i2c register */

Definition at line 24 of file etraxi2c.h.

#define I2C_WRITEARG	(		slave,
			reg,
			value
	)		(((slave) << 16) | ((reg) << 8) | (value))

Definition at line 16 of file etraxi2c.h.

#define I2C_WRITEREG   0x1 /* write to an i2c register */

Definition at line 23 of file etraxi2c.h.