...
[ 8050.906223] wlan0: deauthenticating from <mac_address> by local choice (reason=3)
[ 8050.914824] wlan0: authenticate with <mac_address>
[ 8050.915142] wlan0: send auth to <mac_address> (try 1/3)
[ 8050.917960] wlan0: authenticated
[ 8055.919691] wlan0: deauthenticating from <mac_address> by local choice (reason=3)
[ 8066.438256] wlan0: authenticate with <mac_address>
[ 8066.438631] wlan0: send auth to <mac_address> (try 1/3)
[ 8066.440185] wlan0: authenticated
[ 8071.447980] wlan0: deauthenticating from <mac_address> by local choice (reason=3)
[ 8082.466500] wlan0: authenticate with <mac_address>
[ 8082.473305] wlan0: send auth to <mac_address> (try 1/3)
[ 8082.493654] wlan0: authenticated
...

sudo killall wpa_supplicant

[3481.457982] b43 bcma0: 0 wlan0: disabling HT as WMM / QoS is not supported by the AP
[3481.457992] b43 bcma0: 0 wlan0: disabling VHT as WMM / QoS is not supported by the AP
[3481.461214] wlan0: associate with <mac_address> (try 1/3)
[3481.464068] wlan0: RX AssocResp from <mac_address> (capab = 0x431 status = 0 aid = 3)
[3481.464475] wlan0: associated
[3481.464501] IPv6: ADDRCONF (NETDEV_CHANGE): wlan0: link Becomes ready...

#!/bin/sh
case "$1" in
 resume)
   killall wpa_supplicant
 ;;
esac