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From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: Ruud Linders <rkmp@xs4all.nl>
Cc: linux-kernel@vger.kernel.org, Russell King <rmk+lkml@arm.linux.org.uk>
Subject: Re: 2.6.x kernels and ttyS45 for 6 serial ports ?
Date: Tue, 6 Apr 2004 10:45:51 -0600	[thread overview]
Message-ID: <200404061045.51958.bjorn.helgaas@hp.com> (raw)
In-Reply-To: <200404061037.23867.bjorn.helgaas@hp.com>

On Tuesday 06 April 2004 10:37 am, Bjorn Helgaas wrote:
> > The way this device numbering seems to work is that many device names
> > are reserved in include/asm/serial.h for devices like fourport/boca/hub6.
> > Anything else (=all PCI cards?) gets a number still unassigned.

I forgot to mention another patch along these lines:

    http://www.ussg.iu.edu/hypermail/linux/kernel/0402.1/0904.html

This gives you output like this:

 ttyS0 at MMIO 0xf8030000 (HCDP PCI 0000:e0:01.1, irq = 49) is a 16550A
 ttyS1 at MMIO 0xf8031000 (PCI 0000:e0:01.0, irq = 49) is a 16550A
 ttyS2 at MMIO 0xf8030010 (PCI 0000:e0:01.1, irq = 49) is a 16550A
 ttyS3 at MMIO 0xf8030038 (PCI 0000:e0:01.1, irq = 49) is a 16550A
 ttyS4 at MMIO 0xff5e0000 (ACPI SER0, irq = 67) is a 16550A
 
so you have a clue about what ports are on what cards.  There wasn't
any interest at the time, though.

  reply	other threads:[~2004-04-06 16:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-06 16:37 Bjorn Helgaas
2004-04-06 16:45 ` Bjorn Helgaas [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-04-05 10:35 Ruud Linders
2004-04-05 11:04 ` Russell King
2004-04-05 14:08   ` Ruud Linders
2004-04-05 14:21     ` Arjan van de Ven

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