From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Aras Vaichas <aras.vaichas@gmail.com>
Cc: linux-serial@vger.kernel.org
Subject: Re: can't detect 16550A at port 0x010 on Vortex86dx board
Date: Fri, 6 Jul 2012 23:54:59 +0100 [thread overview]
Message-ID: <20120706235459.5886e2ee@pyramind.ukuu.org.uk> (raw)
In-Reply-To: <CAJkQPOm_TpNp6Y=rx0x9EtH1zvvwOb5JAo7Z+45BKRQPru-4ZQ@mail.gmail.com>
> Would Linux block my ability to manually probe these i/o ports?
Not beyond reserving the region which you've said you've covered.
What you may want to try is making sure Linux doesn't program the DMA
controller (in case its doing something which disables the port in poking
at it).
Beyond that I guess ask the manufacturer for info.
Alan
next prev parent reply other threads:[~2012-07-06 22:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-06 21:00 can't detect 16550A at port 0x010 on Vortex86dx board Aras Vaichas
2012-07-06 22:54 ` Alan Cox [this message]
2012-07-09 12:42 ` Aras Vaichas
2012-07-09 15:15 ` Aras Vaichas
2012-07-09 15:52 ` Alan Cox
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