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-rw-r--r--Documentation/power/devices.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt
index 3384d5996be..29b7a9817f5 100644
--- a/Documentation/power/devices.txt
+++ b/Documentation/power/devices.txt
@@ -152,7 +152,9 @@ try to use its wakeup mechanism. device_set_wakeup_enable() affects this flag;
for the most part drivers should not change its value. The initial value of
should_wakeup is supposed to be false for the majority of devices; the major
exceptions are power buttons, keyboards, and Ethernet adapters whose WoL
-(wake-on-LAN) feature has been set up with ethtool.
+(wake-on-LAN) feature has been set up with ethtool. It should also default
+to true for devices that don't generate wakeup requests on their own but merely
+forward wakeup requests from one bus to another (like PCI bridges).
Whether or not a device is capable of issuing wakeup events is a hardware
matter, and the kernel is responsible for keeping track of it. By contrast,