Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 29 Jun 2005 14:29:54 +0200
From:      Emanuel Strobl <>
Cc:        Norbert Koch <>
Subject:   Re: uplcom a callin only device?
Message-ID:  <200506291430.05882@harrymail>
In-Reply-To: <000101c57c88$4e20dc20$4801a8c0@ws-ew-3.W2KDEMIG>
References:  <000101c57c88$4e20dc20$4801a8c0@ws-ew-3.W2KDEMIG>

Next in thread | Previous in thread | Raw E-Mail | Index | Archive | Help
Content-Type: text/plain;
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Am Mittwoch, 29. Juni 2005 10:55 schrieb Norbert Koch:
> Hello.
> I'm trying to get a sub-to-rs232 adaptor running with FreeBSD-5.
> The vendor of this adaptor is some chinese company named
> High-Edge Tech, but as usbdevs shows, it identifies as
> For testing, I connect the adaptor with the same computer's cuaa0 and
> do an 'stty speed 9600 clocal' on /dev/ucom0 and /dev/cuaia0.
> Now, if I do 'cat < /dev/ucom0' and 'cat > /dev/cuaa0', I see typed
> characters coming in. If I try the opposite direction, nothing happens.
> Is that something, I should've expected, and if so, why?

There are different versions of the prolific chipset and unfortunately they=
changed the init sequence of version 3.00 and up without changing the=20
device ID (If you're interested for more check the archives (current)=20
arround January 21st).

5.4 has the new uplcom driver which checks the revision maybe you can apply=
the cvs version to your 5.3 (guess).


> Does it have to do with the difference of callin and callout
> devices? Can I use /dev/ucom0 only as callin device like /dev/ttyd0?
> Thanks,
> Norbert
> _______________________________________________
> mailing list
> To unsubscribe, send any mail to
> ""

Content-Type: application/pgp-signature

Version: GnuPG v1.4.1 (FreeBSD)



Want to link to this message? Use this URL: <>