Re: [PATCH] fix serial port naming

From: Matthew Wilcox <>
Date: 2003-10-16 03:20:09
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
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Received on Wed Oct 15 13:23:06 2003

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