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authorDavid Brownell <david-b@pacbell.net>2006-08-30 13:54:36 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-25 21:08:37 -0700
commit2bca293e56b6a8cd16bb6e70a09b2adac9c723b5 (patch)
treea67697a05fa718a2a03b603d8afbdcbae41d68bc /kernel
parent047bda36150d11422b2c7bacca1df324c909c0b3 (diff)
PM: add kconfig option for deprecated .../power/state files
Add a new PM_SYSFS_DEPRECATED config option to control whether or not the /sys/devices/.../power/state files are provided. This will make it easier to get rid of that mechanism when the time comes, and to verify that userspace tools work right without it. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 619ecabf7c5..1ed972070d1 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -53,6 +53,17 @@ config PM_TRACE
CAUTION: this option will cause your machine's real-time clock to be
set to an invalid time after a resume.
+config PM_SYSFS_DEPRECATED
+ bool "Driver model /sys/devices/.../power/state files (DEPRECATED)"
+ depends on PM && SYSFS
+ default n
+ help
+ The driver model started out with a sysfs file intended to provide
+ a userspace hook for device power management. This feature has never
+ worked very well, except for limited testing purposes, and so it will
+ be removed. It's not clear that a generic mechanism could really
+ handle the wide variability of device power states; any replacements
+ are likely to be bus or driver specific.
config SOFTWARE_SUSPEND
bool "Software Suspend"