From: "H. Peter Anvin" <hpa@zytor.com>
To: Rene Herman <rene.herman@keyaccess.nl>
Cc: 7eggert@gmx.de, Bjorn Helgaas <bjorn.helgaas@hp.com>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
Russell King <rmk+serial@arm.linux.org.uk>,
Jeff Garzik <jeff@garzik.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [patch 2/2] 8250_pnp: register x86 COM ports at the conventional ttyS names
Date: Fri, 18 Jan 2008 13:10:29 -0500 [thread overview]
Message-ID: <4790EB95.203@zytor.com> (raw)
In-Reply-To: <478E946D.9040105@keyaccess.nl>
Rene Herman wrote:
>
> The number of places expected to contain something sensible should I
> believe first be verified at 0x410 -- the equipment word. Bits 11-9
> (0x0e00) should be the number of serial ports, 0 to 4 (so 5-7 is also a
> sanity check) and if BIOSes can be expected to zero out the non-used
> base-addresses (at 0x400, 0x402, 0x404, 0x406) that's another sanity
> check. Don't know if they can though...
>
Probably not. However, the ports marked valid should be nonzero and
aligned-8.
-hpa
next prev parent reply other threads:[~2008-01-18 18:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <9MjWa-VI-9@gated-at.bofh.it>
[not found] ` <9MjWb-VI-11@gated-at.bofh.it>
[not found] ` <9MlEG-3Mx-13@gated-at.bofh.it>
[not found] ` <9Mmra-56f-29@gated-at.bofh.it>
2008-01-16 20:33 ` [patch 2/2] 8250_pnp: register x86 COM ports at the conventional ttyS names Bodo Eggert
2008-01-16 20:33 ` Bodo Eggert
2008-01-16 20:42 ` H. Peter Anvin
2008-01-16 23:34 ` Rene Herman
2008-01-18 18:10 ` H. Peter Anvin [this message]
2008-01-16 17:05 [patch 0/2] serial: explicitly request ttyS0-3 for COM1-4 Bjorn Helgaas
2008-01-16 17:05 ` [patch 2/2] 8250_pnp: register x86 COM ports at the conventional ttyS names Bjorn Helgaas
2008-01-16 17:05 ` Bjorn Helgaas
2008-01-16 18:42 ` Russell King
2008-01-16 18:44 ` H. Peter Anvin
2008-01-16 19:47 ` Bjorn Helgaas
2008-01-16 19:49 ` H. Peter Anvin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4790EB95.203@zytor.com \
--to=hpa@zytor.com \
--cc=7eggert@gmx.de \
--cc=akpm@linux-foundation.org \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=bjorn.helgaas@hp.com \
--cc=jeff@garzik.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=rene.herman@keyaccess.nl \
--cc=rmk+serial@arm.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.