Function esp_idf_svc::sys::i2c_master_start

pub unsafe extern "C" fn i2c_master_start(
    cmd_handle: *mut c_void,
) -> i32

@brief Queue a “START signal” to the given commands list. This function shall only be called in I2C master mode. Call i2c_master_cmd_begin() to send all the queued commands.

@param cmd_handle I2C commands list

@return - ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error - ESP_ERR_NO_MEM The static buffer used to create cmd_handler is too small - ESP_FAIL No more memory left on the heap