Hello, While poking at the MTK driver and trying to fix some CAC bugs in it, I noticed the following: Select ch 100, which enables DFS CAC logic. Wait for that to finish. Then select CH 36 (disable DFS) Then select ch 100 again, and the chandef->chan->dfs_state is set back to 0 which I think means we must do CAC again. I was expecting in this case that the DFS state would be set to NL80211_DFS_AVAILABLE instead, since CAC just passed a few minutes prior? Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com