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From: tomp@amiga.UUCP (Tom Pohorsky)
Newsgroups: net.micro.amiga
Subject: Re: More on serial problem
Message-ID: <756@amiga.amiga.UUCP>
Date: Wed, 26-Feb-86 14:44:33 EST
Article-I.D.: amiga.756
Posted: Wed Feb 26 14:44:33 1986
Date-Received: Fri, 28-Feb-86 22:09:09 EST
References: <8602251656.AA22138@cory>
Reply-To: tomp@stella.UUCP (Tom Pohorsky)
Organization: Commodore-Amiga Inc., 983 University Ave #D, Los Gatos CA 95030
Lines: 28

<8602251656.AA22138@cory> dillon@CORY.BERKELEY.EDU (Matt Dillon) writes:
>	I think I know why my serial.device routines failed, but I'm not
>sure.  The Hardware manuals have absolutely no examples or description of
>how error's are returned, or what happens to your BeginIO.

Look in the new ROM Kernel Manual for this info.

>	After suspecting that read-error's were causing my poor modem program
>to flop over and die, I put in a small diagnostic to print what BeginIO()
>returned (when I begin the read-request).  For some reason, It came back with:
>
>	2058 (dec) = 00001000-00001010
>

Perhaps I misunderstand what you're saying here, but bear in mind:
  - BeginIO (or SendIO) doesn't return a value. The ensuing WaitIO returns
    the error/completion code.
  - It's "recommended" to use SendIO rather than BeginIO. BeginIO is a tiny
    bit quicker, but requires the requestor to manipulate the IO_QUICK bit
    on his/her own. If you don't know what that bit does, use SendIO like
    you're "supposed" to.

>any examples of serial.device routines that handle read-errors and such 
>without freezing up, I would appreciate it.
>

  The Rom Kernel manual has a trite example program I wrote up back when.
It handles and reports read errors. Happy hackin', tomp.