On 23 March 2016 at 16:33, sandeep suresh <sandeep.sur...@yahoo.co.in> wrote: > Dear experts, > We have a AR9287 based WiFi module on the gateway board operating in > client mode. WiFi beacons are generated from the WiFi AP say every 100ms. How > can we get an event at WiFi client side every time a beacon is received? At > these beacon synchronization points, we want to trigger some calculations in > another Linux process. Please help.
It should be possible with NL80211_CMD_REGISTER_FRAME, but seems mac80211 only supports IEEE80211_STYPE_PROBE_REQ for STA mode - so kernel changes required here. For quick check you can use NL80211_TEST_CMD and report such command every beacon from mac80211 (changes in kernel required). But next you will be sure quality of nl80211 event will be fine for you. Other option is: - iw wlan0 interface add mon0 type monitor - ifconfig mon0 up - tshark -i mon0 -Y beacon_filter_here So, you can write simple app (similar to tshark) that will open mon0 and every beacon you are interest send signal() to another process (but not sure about timing here, you can get beacons in packeges - eg. 5 beacons at once). BR Janusz > Thanks & regards > Sandeep. > _______________________________________________ > ath9k-devel mailing list > ath9k-devel@lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
