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  • net
  • mac80211
  • scan.c
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  • Helmut Schaa's avatar
    mac80211: shorten the passive dwell time for sw scans · 96f7e739
    Helmut Schaa authored Jun 30, 2009
    
    
    mac80211's software scan implementation uses a passive dwell time of
    (HZ / 5) which means we stay 200ms on each passive channel. Compared
    to iwlwifi's hw scan and the old ipw* drivers which use values around
    120ms this is quite long.
    
    Reducing the passive dwell time from 200ms to 125ms should save us
    something around a second on cards capable of 11a and we should still be
    able to catch beacons from most access points (assuming a ~100ms beacon
    interval).
    Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
    Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
    96f7e739