Am 19.05.2016 um 01:34 schrieb Phillip Vallejo: > Is there a way to read how many bytes are sitting in the FTDI read > buffer without actually reading the bytes out? A read buffer count? > > I see the protected member FTDI_Context.readbuffer_remaining but that > value is only valid after the first byte has been read, ie, ‘remaining’.
as far as I know there's no USB command the read out how many bytes are still in the internal buffer of the chip. The D2XX library uses a background thread to constantly read all available data into a memory buffer on the host. That's the reason it can tell you how many bytes are in the buffer ;) At least that's my current knowledge about it. Thomas -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to [email protected]
