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[PATCH] ia64: note requirement for 8250_pnp, now that 8250_acpi is gone

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We removed 8250_acpi in 2.6.17.  If we don't have PNPACPI turned on, we
won't find any ACPI serial devices, so mention this requirement in the
troubleshooting part of the documentation.

CONFIG_PNPACPI is already turned on in all the relevant defconfigs.

Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: "Luck, Tony" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bjorn Helgaas 2006-10-03 01:14:00 -07:00 • committed by Linus Torvalds
commit 1ab54a936d
1 changed files with 7 additions and 0 deletions
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7
Documentation/ia64/serial.txt
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@ -124,6 +124,13 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
- Add entry to /etc/securetty for console tty.
No ACPI serial devices found in 2.6.17 or later:
- Turn on CONFIG_PNP and CONFIG_PNPACPI. Prior to 2.6.17, ACPI
serial devices were discovered by 8250_acpi. In 2.6.17,
8250_acpi was replaced by the combination of 8250_pnp and
CONFIG_PNPACPI.
[1] http://www.dig64.org/specifications/DIG64_PCDPv20.pdf