pcf8574 extern driver function

pcf8574 extern driver modules More...

Collaboration diagram for pcf8574 extern driver function:

Functions
uint8_t	pcf8574_set_reg (pcf8574_handle_t *handle, uint8_t *buf, uint16_t len)
	set the chip register
uint8_t	pcf8574_get_reg (pcf8574_handle_t *handle, uint8_t *buf, uint16_t len)
	get the chip register

Detailed Description

pcf8574 extern driver modules

Function Documentation

pcf8574_get_reg()

uint8_t pcf8574_get_reg	(	pcf8574_handle_t *	handle,
		uint8_t *	buf,
		uint16_t	len )

get the chip register

Parameters

[in]	*handle	pointer to a pcf8574 handle structure
[out]	*buf	pointer to a data buffer.
[in]	len	data buffer length

Returns

status code

• 0 success
• 1 read failed
• 2 handle is NULL
• 3 handle is not initialized

Note

none

Definition at line 332 of file driver_pcf8574.c.

pcf8574_set_reg()

uint8_t pcf8574_set_reg	(	pcf8574_handle_t *	handle,
		uint8_t *	buf,
		uint16_t	len )

set the chip register

Parameters

[in]	*handle	pointer to a pcf8574 handle structure
[in]	*buf	pointer to a data buffer.
[in]	len	data buffer length

Returns

status code

• 0 success
• 1 write failed
• 2 handle is NULL
• 3 handle is not initialized

Note

none

Definition at line 299 of file driver_pcf8574.c.