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authorAlan Stern <stern@rowland.harvard.edu>2011-08-19 23:49:48 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-08-19 23:49:48 +0200
commit5b1b0b812a7b1a5b968c5d06d90d1cb88621b941 (patch)
treedd57943592e4152147d1a5667b082e5f30faaf83 /Documentation/usb
parent311aab73d273eb22be976055f6cab224f7279d5e (diff)
PM / Runtime: Add macro to test for runtime PM events
This patch (as1482) adds a macro for testing whether or not a pm_message value represents an autosuspend or autoresume (i.e., a runtime PM) event. Encapsulating this notion seems preferable to open-coding the test all over the place. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'Documentation/usb')
-rw-r--r--Documentation/usb/power-management.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/usb/power-management.txt b/Documentation/usb/power-management.txt
index c9ffa9ced7ee..e8662a5fbc5d 100644
--- a/Documentation/usb/power-management.txt
+++ b/Documentation/usb/power-management.txt
@@ -439,10 +439,10 @@ cause autosuspends to fail with -EBUSY if the driver needs to use the
device.
External suspend calls should never be allowed to fail in this way,
-only autosuspend calls. The driver can tell them apart by checking
-the PM_EVENT_AUTO bit in the message.event argument to the suspend
-method; this bit will be set for internal PM events (autosuspend) and
-clear for external PM events.
+only autosuspend calls. The driver can tell them apart by applying
+the PMSG_IS_AUTO() macro to the message argument to the suspend
+method; it will return True for internal PM events (autosuspend) and
+False for external PM events.
Mutual exclusion

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