tca9548: Driver for TCA9548A/PCA9548A low-voltage 8-channel I2C switch

Defines

TCA9548_ADDR_0

TCA9548_ADDR_1

TCA9548_ADDR_2

TCA9548_ADDR_3

TCA9548_ADDR_4

TCA9548_ADDR_5

TCA9548_ADDR_6

TCA9548_ADDR_7

BV(x)

TCA9548_CHANNEL0

TCA9548_CHANNEL1

TCA9548_CHANNEL2

TCA9548_CHANNEL3

TCA9548_CHANNEL4

TCA9548_CHANNEL5

TCA9548_CHANNEL6

TCA9548_CHANNEL7

Functions

esp_err_t tca9548_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio)

Initialize device descriptor.

Parameters:

dev – Device descriptor

port – I2C port

addr – Device address

sda_gpio – SDA GPIO pin

scl_gpio – SCL GPIO pin

Returns:

ESP_OK on success

esp_err_t tca9548_free_desc(i2c_dev_t *dev)

Free device descriptor.

Parameters:

dev – Device descriptor

Returns:

ESP_OK on success

esp_err_t tca9548_set_channels(i2c_dev_t *dev, uint8_t channels)

Switch channels.

Parameters:

dev – Device descriptor

channels – Channel flags, combination of TCA9548_CHANNELn

Returns:

ESP_OK on success

esp_err_t tca9548_get_channels(i2c_dev_t *dev, uint8_t *channels)

Read current channels configuration.

Parameters:

dev – Device descriptor

channels – [out] Channel flags, combination of TCA9548_CHANNELn

Returns:

ESP_OK on success