Re: 2.6.x kernels and ttyS45 for 6 serial ports ?

[Bjorn Helgaas]

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.
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