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Subject[patch] 2.4.20-pre5 DMI blacklist IBM Thinkpad in i2c/sensors
Hello Marcelo,
The attached patch add capability to blacklist IBM ThinkPads in i2c/sensors by
updating global variable.
Thanks,
Albert
--
ac9410@attbi.com
--- linux/arch/i386/kernel/dmi_scan.c.orig 2002-07-31 23:10:21.000000000 -0400
+++ linux/arch/i386/kernel/dmi_scan.c 2002-08-19 23:51:07.000000000 -0400
@@ -13,6 +13,7 @@

unsigned long dmi_broken;
int is_sony_vaio_laptop;
+int is_unsafe_smbus;

struct dmi_header
{
@@ -476,6 +477,20 @@
}


+/*
+ * Don't access SMBus on IBM systems which get corrupted eeproms
+ */
+
+static __init int disable_smbus(struct dmi_blacklist *d)
+{
+ if (is_unsafe_smbus == 0)
+ {
+ is_unsafe_smbus = 1;
+ printk(KERN_INFO "%s machine detected. Disabling SMBus accesses.\n", d->ident);
+ }
+ return 0;
+}
+
/*
* Simple "print if true" callback
*/
@@ -765,6 +780,15 @@
NO_MATCH, NO_MATCH, NO_MATCH
} },

+ /*
+ * SMBus / sensors settings
+ */
+
+ { disable_smbus, "IBM", {
+ MATCH(DMI_SYS_VENDOR, "IBM"),
+ NO_MATCH, NO_MATCH, NO_MATCH
+ } },
+
{ NULL, }
};
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