Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 11 Feb 2004 13:37:07 -0600
From:      Eric F Crist <ecrist@adtechintegrated.com>
To:        freebsd-questions@freebsd.org, duanewinner@att.net
Subject:   Re: com ports in freebsd
Message-ID:  <200402111337.14211.ecrist@adtechintegrated.com>
In-Reply-To: <1076527398.252.27.camel@localhost>
References:  <1076527398.252.27.camel@localhost>

next in thread | previous in thread | raw e-mail | index | archive | help

--Boundary-02=_pRoKAXFkxUERIng
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

On Wednesday 11 February 2004 01:23 pm, Duane Winner wrote:
> Hello,
>
> I have a question about how FreeBSD handles the serial ports.
>
> After messing around for 2 days, I finally got my PCMCIA modem working
> on my laptop. All I really had to do was to
> "cd /dev/ && ./MAKEDEV cuaa4"
>
> I did this because dmesg kept reporting the Megahertz modem at "sio4".
>
> What I don't understand is the why or how. My kernel config is still
> using the default sio0 thru sio3 devices:
> 	device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
> 	device          sio1    at isa? port IO_COM2 irq 3
> 	device         sio2    at isa? disable port IO_COM3 irq 5
> 	device         sio3    at isa? disable port IO_COM4 irq 9
>
> So if there is now sio4 in the kernel, how is this working?
>
> I'm not complaining, nor looking for a solution, since I have everything
> working now.
>
> I'm just trying to understand how this working.
>
> Thanks,
> DW

If you look, sio2 and sio3 have been disabled in the kernel config.  since=
=20
sio0 and sio1 are assigned as hardware serial devices, the first available =
is=20
sio4 that either hasn't been disabled or isn't in use. =20

HTH
=2D-=20
Eric F Crist
AdTech Integrated Systems, Inc
(612) 998-3588

--Boundary-02=_pRoKAXFkxUERIng
Content-Type: application/pgp-signature
Content-Description: signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (FreeBSD)

iD8DBQBAKoRpzdyDbTMRQIYRAtFdAJ9YkjEAqB5jpiK2sZNY6wGiVW4Y5wCgvbUK
miW+gR5VDd2bKM285dH/ib8=
=9PNd
-----END PGP SIGNATURE-----

--Boundary-02=_pRoKAXFkxUERIng--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200402111337.14211.ecrist>