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Well, if i connect to the modem directly with Putty for example and execute the same command I'm getting the expected feedback. I also tried different modems with the same result. I think for some reason the response is not ending up the file handle. If you look at the first code I posted you see that the loop to output the response should only be entered if there is anything in the filehandle. But it never entered it. In the second code it's just getting stuck as there is nothing in the filehandle as well. Could you maybe explain more detailed (or provide links) what you mean with "more explicit file handle discipline"? I'm not a very experienced programmer so I would need more input to understand :) I tried both now - read and sysread. But both loops are not beeing entered at all:
my $read; my $sysread; #Reading the response print "reading...\n"; while ( read(PORT,$read,2048) ) { print "using read:\n"; print $read; } while (sysread(PORT, $sysread, 10000)) { print "using sysread:\n"; print $sysread; }
Here's what's happening:
c:\Dropbox\Scripts>perl Enter AT command:ATI0 Sending: 'ATI0' reading... done! c:\Dropbox\Scripts>

In reply to Re^2: Trying to read from serial port - not getting a response by adiuva
in thread Trying to read from serial port - not getting a response by adiuva

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    [Eily]: hu, don't tell the other French people I never tried it, I might get kicked out :P
    choroba . o O ( The Czech at-sign is also edible )
    [Eily]: the French @ is a mouthful I guess...
    [Eily]: choroba Wikipedia gives me Zavináč which doesn't seem to translate to something edible?
    [Eily]: (yes I'm very good at using question marks, thank you)
    [Discipulus]: O_O frexit for you! even me i tried. it was in the arabic quarter in Granada; they offered as 'tapas' in bars. I eataly somewhere they eat ;=P Sardinia a Pulia iirc
    [choroba]: Zavináč

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