On Mon, 25 Feb 2008, Kevin Lloyd wrote:

> We were hoping to have the DM stream output from a virtual serial port
> for easy & direct access for 3rd party developers (file handles are
> simple and straightforward to read/write from). My thought is that
> implementing this in a userspace daemon/program requires cross-process
> communication which I feel is a bit more complex

Hint: named pipes (see fifo(7)).

> (or is there a standard
> way for a userspace program to output to a virtual serial port to obtain
> the same net effect).

Hint: ptys.

Alan Stern

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