From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Date: Mon, 02 Oct 2006 16:42:25 +0000 Subject: [patch] ia64: note requirement for 8250_pnp, now that 8250_acpi is gone Message-Id: <200610021042.25632.bjorn.helgaas@hp.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org 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 Index: mm2/Documentation/ia64/serial.txt =================================--- mm2.orig/Documentation/ia64/serial.txt 2006-06-17 19:49:35.000000000 -0600 +++ mm2/Documentation/ia64/serial.txt 2006-06-29 10:46:08.000000000 -0600 @@ -124,6 +124,13 @@ - 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