From: Andrey Panin <pazke@centrinvest.ru>
To: Jeff Chua <jeff.chua.linux@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: How to access serial port that is set in BIOS as OS Controlled
Date: Thu, 4 Aug 2011 14:56:57 +0400 [thread overview]
Message-ID: <20110804105657.GA27681@centrinvest.ru> (raw)
In-Reply-To: <CAAJw_ZvnUPs5wD6hU059GcKRkyeNn7Y36fk9nNjNFJ6kNmL0uw@mail.gmail.com>
On 209, 07 28, 2011 at 01:43:11PM +0800, Jeff Chua wrote:
> I'm trying to access the serial port ttyS2 that is set in the BIOS as
> "OS Controlled" without much success. If it's set it to "Always
> Enabled", I can access the serial port.
>
> This is on the Intermec CV60, and ttyS2 is the touchscreen port.
>
> # setserial /dev/ttyS2
> /dev/ttyS2, UART: 16550A, Port: 0x03e8, IRQ: 6
>
>
> If I set the BIOS to "OS Controlled", I can't access the serial port
> no matter what parameter I pass to the setserial. The factory default
> is "OS Controlled", and Window XP can detect and access the port.
> There will be hundreds of CV60 to get into the BIOS to set it one by
> one. If there's a way to access the port in linux, it'll be great!
Does lspnp show this port in "OS Controlled" mode ?
next prev parent reply other threads:[~2011-08-04 11:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 5:43 Jeff Chua
2011-08-04 10:56 ` Andrey Panin [this message]
2011-08-04 17:39 ` Bjorn Helgaas
[not found] ` <CAAJw_ZvZEn0qVG3JVfEWFQbOSjVUCJhBwQ2Dw5KQyDx2kY4xbA@mail.gmail.com>
2011-08-05 15:20 ` Bjorn Helgaas
[not found] ` <CAAJw_ZvxQQ9-QrSiv9-Y4yCun4W0xvAD3OcdL8gS_hN9FE1rkQ@mail.gmail.com>
2011-08-10 16:46 ` Bjorn Helgaas
2011-08-11 9:07 Jeff Chua
2011-08-11 21:49 ` Bjorn Helgaas
2011-08-12 7:01 Jeff Chua
2011-08-12 18:07 ` Bjorn Helgaas
2011-08-12 21:59 Jeff Chua
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=20110804105657.GA27681@centrinvest.ru \
--to=pazke@centrinvest.ru \
--cc=jeff.chua.linux@gmail.com \
--cc=linux-kernel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®