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authorKalle Valo <kalle.valo@nokia.com>2009-03-22 21:57:21 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-03-27 20:13:12 -0400
commit9050bdd8589c373e01e41ddbd9a192de2ff01ef0 (patch)
treea33c69c570d6db96bb54bb3b4b3eb5ea4b43d5ea /include/net
parent15b7b0629c8213905926394dc73d600e0ca250ce (diff)
mac80211: disable power save when scanning
When software scanning we need to disable power save so that all possible probe responses and beacons are received. For hardware scanning assume that hardware will take care of that and document that assumption. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/mac80211.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index daa539a4287..174dc1d7526 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1307,11 +1307,13 @@ enum ieee80211_ampdu_mlme_action {
*
* @hw_scan: Ask the hardware to service the scan request, no need to start
* the scan state machine in stack. The scan must honour the channel
- * configuration done by the regulatory agent in the wiphy's registered
- * bands. When the scan finishes, ieee80211_scan_completed() must be
- * called; note that it also must be called when the scan cannot finish
- * because the hardware is turned off! Anything else is a bug!
- * Returns a negative error code which will be seen in userspace.
+ * configuration done by the regulatory agent in the wiphy's
+ * registered bands. The hardware (or the driver) needs to make sure
+ * that power save is disabled. When the scan finishes,
+ * ieee80211_scan_completed() must be called; note that it also must
+ * be called when the scan cannot finish because the hardware is
+ * turned off! Anything else is a bug! Returns a negative error code
+ * which will be seen in userspace.
*
* @sw_scan_start: Notifier function that is called just before a software scan
* is started. Can be NULL, if the driver doesn't need this notification.