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cfg80211: document sched_scan_stop synchronous behaviour

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Due to userspace assumptions, the sched_scan_stop operation must
be synchronous, i.e. once it returns a new scheduled scan must be
able to start immediately. Document this in the API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2014-02-13 17:16:10 +01:00
parent df942e7ba7
commit d9b8396a52
2 changed files with 9 additions and 3 deletions
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include/net/cfg80211.h
+6 -1
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@@ -2206,7 +2206,12 @@ struct cfg80211_qos_map {
* @set_cqm_txe_config: Configure connection quality monitor TX error
* thresholds.
* @sched_scan_start: Tell the driver to start a scheduled scan.
* @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan.
* @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This
* call must stop the scheduled scan and be ready for starting a new one
* before it returns, i.e. @sched_scan_start may be called immediately
* after that again and should not fail in that case. The driver should
* not call cfg80211_sched_scan_stopped() for a requested stop (when this
* method returns 0.)
*
* @mgmt_frame_register: Notify driver that a management frame type was
* registered. Note that this callback may not sleep, and cannot run