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// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
// Organization: FOSSEE, IIT Bombay
// Email: toolbox@scilab.in
function bytes = RPI_SerialDataAvail(fd)
// Function to get number of data bytes available on serial port specified by
// file descriptor
// Calling Sequence
// RPI_SerialDataAvail(fd)
//
// Parameters
// fd : file descriptor for already opened serial port
// Description
// This functions returns number of characters available to read,
// otherwise reads -1 in case of error. This function can be used to check
// new data is available on serial port
// Examples
// serial = RPI_SerialOpen("/dev/ttyAMA0", 9600);
// charsToRead = RPI_SerialDataAvail(serial);
// See also
// RPI_SerialOpen RPI_SerialGetChar
//
//
// Authors
// Siddhesh Wani
// -----------------------------------------------------------------
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for RPi.
bytes = 0;
endfunction
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