DEVHIO_sio_read Function

#include <kmc/hio/devhio_sio.h>

int DEVHIO_sio_read(
     int ch,
     void * buf,
     int length,
     int attr
);

	Name	Description
in	ch	Channel number (from 0 to DEVHIO_COMM_MAX_CHANNEL-1).
out	buf	Receive buffer.
in	length	Length of the data to receive.
in	attr	Specifying DEVHIO_SIO_ATTR_NONE causes the function to block until either the specified amount of data is received or the device disconnects. Specifying DEVHIO_SIO_ATTR_NOWAIT causes the operation to return immediately without blocking.

Negative value: Error.
Zero or greater: Received data.

Receives data via serial communication.

2010/08/16

Initial version.