From: Matthew Wilcox <willy@debian.org>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] fix serial port naming
Date: Wed, 15 Oct 2003 17:20:09 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106623858629708@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106623720527866@msgid-missing>
On Wed, Oct 15, 2003 at 10:54:36AM -0600, Bjorn Helgaas wrote:
> This also fixes a long-standing serial device naming issue:
> ttyS0-ttyS3 were always reserved for the compiled-in
> COM ports, even if they weren't present in the box.
> Any additional PCI or ACPI ports appeared starting at
> ttyS4 (except for the special case of things described
> in the HCDP). Now we'll just name ttyS devices in the
> order they're discovered, without any holes for non-existent
> devices.
Oh good; this was even worse on 2.6 where we would number the two serial
ports on a zx2000 ttyS0 and ttyS14. That caused me much crawling about
on the floor with serial cables until I realised I'd pointed minicom at
ttyS1 which wasn't there any more.
--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
prev parent reply other threads:[~2003-10-15 17:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-15 16:54 [PATCH] fix serial port naming Bjorn Helgaas
2003-10-15 17:20 ` Matthew Wilcox [this message]
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