Retrieve the number of received bytes in the buffer.
int32_t i2c_s_async_get_bytes_received( const struct i2c_s_async_descriptor *const descr )
This function retrieves the number of received bytes which were not read out
Type: const struct i2c_s_async_descriptor Struct *const
An I2C slave descriptor which is used to communicate through
Type: int32_t
The amount of bytes received