Point of linguistic order: you don't want to spoof /dev/ttyS0 because that would mean you want to fool it into accepting an alternate version of reality. In the context of a device, this might mean getting it to read or write bytes it wasn't meant to, which doesn't make a whole lot of sense.

What you really want to do is to mock /dev/ttyS0, so that innocent bystanders think they are writing to a serial device driver, when in fact they're writing to your Perl program.

At one level this is rather trivial, just move the existing /dev/ttyS0 out of the way and install a FIFO in its place. On the other hand, this might annoy real users of the real serial port.

Can you not arrange your code to use some existsing test harness like Test::Device::SerialPort?.

• another intruder with the mooring in the heart of the Perl

In reply to Re: Spoof /dev/ttyS0 by grinder
in thread Spoof /dev/ttyS0 by akujbida

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.