RE: [FAQ?]How to add dsdt.hex to kernel ?

-----Original Message-----
From: Stefan Behnel [mailto:behnel_ml-8NdywcgfOMlWMvVl7B+zuCEWGD4kr0XT@public.gmane.org]
Sent: Saturday, February 01, 2003 4:08 AM
To: John, Reeja
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: [FAQ?][ACPI] How to add dsdt.hex to kernel ?


Hi!

reeja.john-5C7GfCeVMHo@public.gmane.org wrote:
 > I created a custom dsdt.hex for my system for the kernel 
2.5.55. How
 > am I able to add this new dsdt into the kernel?

That one should really go into a FAQ somewhere (or rather replace the 
outdated description in the existing FAQ).

This simple patch allows you to include your DSDT.hex file. I 
called it 
"my-dsdt.hex" here, has to be in the directory [linux]/drivers/acpi/, 
where osl.c is located.

BTW: As this seems to be a common problem, would there be a 
way to add 
it as a standard kernel config option?

Have fun,
Stefan Behnel

--- linux-2.4.21/drivers/acpi/osl.c 2003-01-24 

09:59:27.000000000 +0100

+++ linux/drivers/acpi/osl.c	  2003-01-24 13:36:45.000000000 +0100

@@ -201,6 +201,9 @@
  	return AE_OK;
  }

+/**/static const
+#include "my-dsdt.hex"
+
  acpi_status
  acpi_os_table_override (struct acpi_table_header *existing_table,
  			struct acpi_table_header **new_table)

@@ -208,7 +211,11 @@
  	if (!existing_table || !new_table)
  		return AE_BAD_PARAMETER;

-	*new_table = NULL;
+	/**/if (strncmp(existing_table->signature,"DSDT",4))
+	  *new_table = NULL;
+	/**/else
+	  *new_table = (struct acpi_table_header *)AmlCode;
+
  	return AE_OK;
  }