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To: ian@FreeBSD.org, petefrench@ingresso.co.uk
Subject: Re: STMicroelectronics USB serial controller
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From: Pete French <petefrench@ingresso.co.uk>
Date: Tue, 14 Oct 2014 15:24:38 +0100
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> Try pointing that linux software at /dev/cuaU0 instead of ttyU0.  The
> cua devices are "callout" and tty are "dialin" and the distinction is
> that the tty layer will block the open of a dialin tty until the modem
> carrier-detect is asserted.  Since that isn't a real modem that's
> unlikely to happen, but it should always work to open the cua device.

Gah! Yes, of course - I even knew that, from way back in the 80's - just
didnt think to look for the 'cu' devices. Feel very stupid
know.

Works like a charm, thanks!

-pete.