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authorRafael J. Wysocki <rjw@sisk.pl>2010-01-23 22:25:23 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2010-02-26 20:39:10 +0100
commit5a2eb8585f3b38e01e30aacaa8b985a1520a993d (patch)
tree471b33cc48cf48ed491e8b3f2934bfb3fa9e81e1 /kernel
parent0e06b4a891c6a108412fe24b4500f499da2cf8a1 (diff)
PM: Add facility for advanced testing of async suspend/resume
Add configuration switch CONFIG_PM_ADVANCED_DEBUG for compiling in extra PM debugging/testing code allowing one to access some PM-related attributes of devices from the user space via sysfs. If CONFIG_PM_ADVANCED_DEBUG is set, add sysfs attribute power/async for every device allowing the user space to access the device's power.async_suspend flag and modify it, if desired. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/Kconfig14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 4c9cffcf69c..5c36ea9d55d 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -27,6 +27,15 @@ config PM_DEBUG
code. This is helpful when debugging and reporting PM bugs, like
suspend support.
+config PM_ADVANCED_DEBUG
+ bool "Extra PM attributes in sysfs for low-level debugging/testing"
+ depends on PM_DEBUG
+ default n
+ ---help---
+ Add extra sysfs attributes allowing one to access some Power Management
+ fields of device objects from user space. If you are not a kernel
+ developer interested in debugging/testing Power Management, say "no".
+
config PM_VERBOSE
bool "Verbose Power Management debugging"
depends on PM_DEBUG
@@ -85,6 +94,11 @@ config PM_SLEEP
depends on SUSPEND || HIBERNATION || XEN_SAVE_RESTORE
default y
+config PM_SLEEP_ADVANCED_DEBUG
+ bool
+ depends on PM_ADVANCED_DEBUG
+ default n
+
config SUSPEND
bool "Suspend to RAM and standby"
depends on PM && ARCH_SUSPEND_POSSIBLE