STM32_I2C_SPEED_STANDARD
if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD) {
if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD)
if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD) {
i2c_dev->speed = STM32_I2C_SPEED_STANDARD;