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authorShaohua Li <shaohua.li@intel.com>2005-10-30 15:00:01 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:15 -0800
commiteb9289eb20df6b54214c45ac7c6bf5179a149026 (patch)
treedac51cecdd94e0c7273c990259ddd800057311b9 /include/linux
parent0245b3e787dc3267a915e1f56419e7e9c197e148 (diff)
[PATCH] introduce .valid callback for pm_ops
Add pm_ops.valid callback, so only the available pm states show in /sys/power/state. And this also makes an earlier states error report at enter_state before we do actual suspend/resume. Signed-off-by: Shaohua Li<shaohua.li@intel.com> Acked-by: Pavel Machek<pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h
index c61d5de837e..1514098d156 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -170,6 +170,7 @@ typedef int __bitwise suspend_disk_method_t;
struct pm_ops {
suspend_disk_method_t pm_disk_mode;
+ int (*valid)(suspend_state_t state);
int (*prepare)(suspend_state_t state);
int (*enter)(suspend_state_t state);
int (*finish)(suspend_state_t state);