read returns number of bytes read or -1 for error.
if u are using serial port for socket communication
it is better to read data using recv.




On Wed, 14 May 2003 michael bosu wrote :
>Hi,
>
>Please to read from the serial port, what does the
>function read return. For instance if the code below
>return 8 for count. Does that mean the number of bytes
>is 8 or what?
>
>Also if I want to get the actual bytes received how do
>I go about it.
>
>
>if ((count = read(fd, &vbuf[vlen], BUFFERSIZE - vlen))
>== -1) {
>
>                perror("read");
> 	      	exit(1);
>
> 	}
>
>Thank you,
>Michael mfbosu@yahoo.com
>
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