note 74497 added to function.fgetc

Trying to read from a serial port but it just stops when i do a fgetc(). Any ideas? $relay = fopen("/dev/ttyUSB0", "r+"); fwrite($relay, chr(254) . chr(8) . chr(2) . chr(1)); print "Reading Data\n"; $contents = fgetc($relay); print "Received: $contents\n"; Code excution stops at $contents = fgetc($relay) And never continues! ---- Server IP: 66.207.199.35 Probable Submitter: 70.69.74.228 ---- Manual Page -- http://www.php.net/manual/en/function.fgetc.php Edit -- https://master.php.net/note/edit/74497 Del: integrated -- https://master.php.net/note/delete/74497/integrated Del: useless -- https://master.php.net/note/delete/74497/useless Del: bad code -- https://master.php.net/note/delete/74497/bad+code Del: spam -- https://master.php.net/note/delete/74497/spam Del: non-english -- https://master.php.net/note/delete/74497/non-english Del: in docs -- https://master.php.net/note/delete/74497/in+docs Del: other reasons-- https://master.php.net/note/delete/74497 Reject -- https://master.php.net/note/reject/74497 Search -- https://master.php.net/manage/user-notes.php