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authorLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
committerLen Brown <len.brown@intel.com>2010-08-15 01:06:31 -0400
commit95ee46aa8698f2000647dfb362400fadbb5807cf (patch)
treee5a05c7297f997e191c73091934e42e3195c0e40 /drivers/acpi/Kconfig
parentcfa806f059801dbe7e435745eb2e187c8bfe1e7f (diff)
parent92fa5bd9a946b6e7aab6764e7312e4e3d9bed295 (diff)
downloadlinux-95ee46aa8698f2000647dfb362400fadbb5807cf.tar.bz2
Merge branch 'linus' into release
Conflicts: drivers/acpi/debug.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
-rw-r--r--drivers/acpi/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 5ed51b3d7522..b811f2173f6f 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -97,6 +97,24 @@ config ACPI_SYSFS_POWER
help
Say N to disable power /sys interface
+config ACPI_EC_DEBUGFS
+ tristate "EC read/write access through /sys/kernel/debug/ec"
+ default n
+ help
+ Say N to disable Embedded Controller /sys/kernel/debug interface
+
+ Be aware that using this interface can confuse your Embedded
+ Controller in a way that a normal reboot is not enough. You then
+ have to power of your system, and remove the laptop battery for
+ some seconds.
+ An Embedded Controller typically is available on laptops and reads
+ sensor values like battery state and temperature.
+ The kernel accesses the EC through ACPI parsed code provided by BIOS
+ tables. This option allows to access the EC directly without ACPI
+ code being involved.
+ Thus this option is a debug option that helps to write ACPI drivers
+ and can be used to identify ACPI code or EC firmware bugs.
+
config ACPI_PROC_EVENT
bool "Deprecated /proc/acpi/event support"
depends on PROC_FS