IO expander device API. More...

#include <stdint.h>
#include <sys/ioctl.h>

Include dependency graph for drv_io_expander.h:

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Macros
#define	_IOXIOCBASE (0x2800)

#define	_IOXIOC(_n) (_IOC(_IOXIOCBASE, _n))

#define	IOX_SET_MASK _IOXIOC(1)
	set a bitmask (non-blocking) More...

#define	IOX_GET_MASK _IOXIOC(2)
	get a bitmask (blocking) More...

#define	IOX_SET_MODE _IOXIOC(3)
	set device mode (non-blocking) More...

#define	IOX_SET_VALUE _IOXIOC(4)
	set constant values (non-blocking) More...

Enumerations
enum	IOX_MODE { IOX_MODE_OFF, IOX_MODE_ON, IOX_MODE_TEST_OUT }

Detailed Description

IO expander device API.

Definition in file drv_io_expander.h.

Macro Definition Documentation

◆ _IOXIOC

#define _IOXIOC ( _n ) (_IOC(_IOXIOCBASE, _n))

Definition at line 50 of file drv_io_expander.h.

◆ _IOXIOCBASE

#define _IOXIOCBASE (0x2800)

Definition at line 49 of file drv_io_expander.h.

◆ IOX_GET_MASK

#define IOX_GET_MASK _IOXIOC(2)

get a bitmask (blocking)

Definition at line 56 of file drv_io_expander.h.

◆ IOX_SET_MASK

#define IOX_SET_MASK _IOXIOC(1)

set a bitmask (non-blocking)

Definition at line 53 of file drv_io_expander.h.

◆ IOX_SET_MODE

#define IOX_SET_MODE _IOXIOC(3)

set device mode (non-blocking)

Definition at line 59 of file drv_io_expander.h.

Referenced by PCA9685::ioctl(), and pca9685_main().

◆ IOX_SET_VALUE

#define IOX_SET_VALUE _IOXIOC(4)

set constant values (non-blocking)

Definition at line 62 of file drv_io_expander.h.

Enumeration Type Documentation

◆ IOX_MODE

enum IOX_MODE

Enumerator
IOX_MODE_OFF
IOX_MODE_ON
IOX_MODE_TEST_OUT

Definition at line 67 of file drv_io_expander.h.

Macros

Enumerations