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| author | David Brownell <david-b@pacbell.net> | 2006-08-30 22:54:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-26 06:08:37 +0200 |
| commit | 2bca293e56b6a8cd16bb6e70a09b2adac9c723b5 (patch) | |
| tree | a67697a05fa718a2a03b603d8afbdcbae41d68bc /kernel | |
| parent | PM: update docs for writing .../power/state (diff) | |
| download | linux-2bca293e56b6a8cd16bb6e70a09b2adac9c723b5.tar.xz linux-2bca293e56b6a8cd16bb6e70a09b2adac9c723b5.zip | |
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/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 619ecabf7c58..1ed972070d19 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" |