i am new to sysread. trying to get a sysread return from a display device before sending more data into it. I should be expecting from the device values in hex such as FE or FF depending on whether the buffer is full or empty. But its returning garbage characters. 

..
my $myBuf;
my $selector = IO::Select->new(\*DisplayIO);
if ($selector->can_read(3)) { # 3 second timeout.
   sysread (DisplayIO, $myBuf, 1);
   print "Buffer returned : $myBuf\n"
} else {
   print "Nothing in buffer\n";
}
..

[download]
$myBuf is returning values such as þ & ÿ. I am hoping to get a hex return FE or FF. Thanks in advance.

In reply to sysread returning weird values by perllearner

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