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authorThomas Renninger <trenn@suse.de>2010-07-16 13:11:31 +0200
committerMatthew Garrett <mjg@redhat.com>2010-08-03 09:49:08 -0400
commit1195a098168fcacfef1cd80d05358e52fb366bf6 (patch)
tree8629388386fdb4fd6bc2b955f10a96b83a9790b3 /drivers/acpi/Kconfig
parentcd89e08fa020f5a882f922e3c9e2628235ca6715 (diff)
ACPI: Provide /sys/kernel/debug/ec/...
This patch provides the same information through debugfs, which previously was provided through /proc/acpi/embedded_controller/*/info This is the gpe the EC is connected to and whether the global lock gets used. The io ports used are added to /proc/ioports in another patch. Beside the fact that /proc/acpi is deprecated for quite some time, this info is not needed for applications and thus can be moved to debugfs instead of a public interface like /sys. Signed-off-by: Thomas Renninger <trenn@suse.de> CC: Alexey Starikovskiy <astarikovskiy@suse.de> CC: Len Brown <lenb@kernel.org> CC: linux-kernel@vger.kernel.org CC: linux-acpi@vger.kernel.org CC: Bjorn Helgaas <bjorn.helgaas@hp.com> CC: platform-driver-x86@vger.kernel.org Signed-off-by: Matthew Garrett <mjg@redhat.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
-rw-r--r--drivers/acpi/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 746411518802..f7226d1bc80e 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -104,6 +104,19 @@ 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 y
+ help
+ Say N to disable Embedded Controller /sys/kernel/debug interface
+
+ An Embedded Controller typically is available on laptops and reads
+ sensor values like battery state and temperature.
+ The kernel access the EC through ACPI parsed code provided by BIOS
+ tables.
+ 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