ioexp_tca6424.h File Reference

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Data Structures
struct	TCA6424_Params
	Parameters passed during TCA6424_open() More...
struct	TCA6424_Attrs
	IO Expander device attributes. More...
struct	TCA6424_Config
	IO Expander driver configuration. This is the driver object used to store state variables. More...

Macros
IO pin mode - Input or Output
#define	TCA6424_MODE_INPUT   (0U)
	Configure IO pin as input. More...
#define	TCA6424_MODE_OUTPUT   (1U)
	Configure IO pin as output. More...
IO pin output state - HIGH or LOW
#define	TCA6424_OUT_STATE_LOW   (0U)
	Configure IO pin output as LOW. More...
#define	TCA6424_OUT_STATE_HIGH   (1U)
	Configure IO pin output as HIGH. More...

Functions
int32_t	TCA6424_open (TCA6424_Config *config, const TCA6424_Params *params)
	Open TCA6424 driver. More...
void	TCA6424_close (TCA6424_Config *config)
	Close TCA6424 driver. More...
int32_t	TCA6424_config (TCA6424_Config *config, uint32_t ioIndex, uint32_t mode)
	API to set a IO pin of TCA6424 as input or output. More...
int32_t	TCA6424_setOutput (TCA6424_Config *config, uint32_t ioIndex, uint32_t state)
	API to set a IO pin of TCA6424 to either HIGH or LOW. More...
void	TCA6424_getAttrs (TCA6424_Config *config, TCA6424_Attrs *attrs)
	Returns TCA6424 attributes. More...
void	TCA6424_Params_init (TCA6424_Params *params)
	Set default parameters in the TCA6424_Params structure. More...