Add 16550 uart emulation as a PCI device. This allows it to

be activated as part of the slot config options.
  The syntax is:

     -s <slotnum>,uart[,stdio]

  The stdio parameter instructs the code to perform i/o using
stdin/stdout. It can only be used for one instance.
  To allow legacy i/o ports/irqs to be used, a new variant of
the slot command, -S, is introduced. When used to specify a
slot, the device will use legacy resources if it supports
them; otherwise it will be treated the same as the '-s' option.
  Specifying the -S option with the uart will first use the 0x3f8/irq 4
config, and the second -S will use 0x2F8/irq 3.

  Interrupt delivery is awaiting the arrival of the i/o apic code,
but this works fine in uart(4)'s polled mode.

  This code was written by Cynthia Lu @ MIT while an intern at NetApp,
with further work from neel@ and grehan@.

Obtained from:	NetApp

0 files changed, 0 insertions, 0 deletions