Code:
root@kalroot@kali:~# dmesg
[ 82.310635] usb 1-1.2: USB disconnect, device number 14
[ 84.383455] ath: phy10: Could not kill baseband RX
[ 84.406088] ath: phy10: Failed to wakeup in 500us
[ 84.516750] ath: phy10: RX failed to go idle in 10 ms RXSM=0xc053e7b8
[ 84.537436] ath: phy10: Failed to wakeup in 500us
[ 84.649309] ath: phy10: RX failed to go idle in 10 ms RXSM=0x0
[ 84.761302] usb 1-1.2: ath9k_htc: USB layer deinitialized
[ 85.000938] usb 1-1.2: new high-speed USB device number 15 using dwc_otg
[ 85.131710] usb 1-1.2: New USB device found, idVendor=0cf3, idProduct=9271
[ 85.143008] usb 1-1.2: New USB device strings: Mfr=16, Product=32, SerialNumber=48
[ 85.155442] usb 1-1.2: Product: UB91C
[ 85.161433] usb 1-1.2: Manufacturer: ATHEROS
[ 85.168384] usb 1-1.2: SerialNumber: 12345
[ 85.176043] usb 1-1.2: ath9k_htc: Firmware htc_9271.fw requested
[ 85.464807] usb 1-1.2: ath9k_htc: Transferred FW: htc_9271.fw, size: 50980
[ 85.712547] ath9k_htc 1-1.2:1.0: ath9k_htc: HTC initialized with 33 credits
[ 88.134001] ath9k_htc 1-1.2:1.0: ath9k_htc: FW Version: 1.3
[ 88.143102] ath9k_htc 1-1.2:1.0: FW RMW support: Off
[ 88.151243] ath: EEPROM regdomain: 0x833a
[ 88.151252] ath: EEPROM indicates we should expect a country code
[ 88.151267] ath: doing EEPROM country->regdmn map search
[ 88.151287] ath: country maps to regdmn code: 0x37
[ 88.151296] ath: Country alpha2 being used: GB
[ 88.151304] ath: Regpair used: 0x37
[ 88.180918] ieee80211 phy11: Atheros AR9271 Rev:1
[ 88.214922] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 88.963233] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 89.088321] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 89.986262] usb 1-1.2: USB disconnect, device number 15
[ 91.053596] ath: phy11: Could not kill baseband RX
[ 91.092895] ath: phy11: Failed to wakeup in 500us
[ 91.203440] ath: phy11: RX failed to go idle in 10 ms RXSM=0xc0938cb5
[ 91.224114] ath: phy11: Failed to wakeup in 500us
[ 91.336043] ath: phy11: RX failed to go idle in 10 ms RXSM=0x0
[ 91.451188] usb 1-1.2: ath9k_htc: USB layer deinitialized
[ 91.700857] usb 1-1.2: new high-speed USB device number 16 using dwc_otg
[ 91.831549] usb 1-1.2: New USB device found, idVendor=0cf3, idProduct=9271
[ 91.842762] usb 1-1.2: New USB device strings: Mfr=16, Product=32, SerialNumber=48
[ 91.855103] usb 1-1.2: Product: UB91C
[ 91.861086] usb 1-1.2: Manufacturer: ATHEROS
[ 91.868025] usb 1-1.2: SerialNumber: 12345
[ 91.875811] usb 1-1.2: ath9k_htc: Firmware htc_9271.fw requested
[ 92.164328] usb 1-1.2: ath9k_htc: Transferred FW: htc_9271.fw, size: 50980
[ 92.412445] ath9k_htc 1-1.2:1.0: ath9k_htc: HTC initialized with 33 credits
[ 94.835906] ath9k_htc 1-1.2:1.0: ath9k_htc: FW Version: 1.3
[ 94.845121] ath9k_htc 1-1.2:1.0: FW RMW support: Off
[ 94.853321] ath: EEPROM regdomain: 0x833a
[ 94.853397] ath: EEPROM indicates we should expect a country code
[ 94.853412] ath: doing EEPROM country->regdmn map search
[ 94.853433] ath: country maps to regdmn code: 0x37
[ 94.853443] ath: Country alpha2 being used: GB
[ 94.853451] ath: Regpair used: 0x37
[ 94.881314] ieee80211 phy12: Atheros AR9271 Rev:1
[ 94.944169] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 95.674124] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 95.808380] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 96.899302] usb 1-1.2: USB disconnect, device number 16
[ 98.793522] ath: phy12: Could not kill baseband RX
[ 98.816436] ath: phy12: Failed to wakeup in 500us
[ 98.928357] ath: phy12: RX failed to go idle in 10 ms RXSM=0xc0938cb5
[ 98.949357] ath: phy12: Failed to wakeup in 500us
[ 99.062121] ath: phy12: RX failed to go idle in 10 ms RXSM=0x0
[ 99.272754] usb 1-1.2: ath9k_htc: USB layer deinitialized
[ 99.530924] usb 1-1.2: new high-speed USB device number 17 using dwc_otg
[ 99.661728] usb 1-1.2: New USB device found, idVendor=0cf3, idProduct=9271
[ 99.673019] usb 1-1.2: New USB device strings: Mfr=16, Product=32, SerialNumber=48
[ 99.685415] usb 1-1.2: Product: UB91C
[ 99.691439] usb 1-1.2: Manufacturer: ATHEROS
[ 99.698400] usb 1-1.2: SerialNumber: 12345
[ 99.706164] usb 1-1.2: ath9k_htc: Firmware htc_9271.fw requested
[ 99.998214] usb 1-1.2: ath9k_htc: Transferred FW: htc_9271.fw, size: 50980
[ 100.246490] ath9k_htc 1-1.2:1.0: ath9k_htc: HTC initialized with 33 credits
[ 100.680356] cfg80211: Calling CRDA for country: US
[ 100.713924] cfg80211: Regulatory domain changed to country: US
[ 100.723546] cfg80211: DFS Master region: FCC
[ 100.730445] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 100.746425] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[ 100.759589] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[ 100.775060] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2300 mBm), (0 s)
[ 100.790560] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
[ 100.803782] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[ 100.816855] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 102.681947] ath9k_htc 1-1.2:1.0: ath9k_htc: FW Version: 1.3
[ 102.691156] ath9k_htc 1-1.2:1.0: FW RMW support: Off
[ 102.699240] ath: EEPROM regdomain: 0x833a
[ 102.699250] ath: EEPROM indicates we should expect a country code
[ 102.699281] ath: doing EEPROM country->regdmn map search
[ 102.699292] ath: country maps to regdmn code: 0x37
[ 102.699302] ath: Country alpha2 being used: GB
[ 102.699310] ath: Regpair used: 0x37
[ 102.721440] ieee80211 phy13: Atheros AR9271 Rev:1
[ 102.729253] cfg80211: Calling CRDA for country: GB
[ 102.789767] cfg80211: Current regulatory domain intersected:
[ 102.799060] cfg80211: DFS Master region: unset
[ 102.806207] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 102.822100] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 102.835183] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[ 102.850651] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 102.866105] cfg80211: (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
[ 102.879303] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 102.895005] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 103.629437] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 103.916633] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
oot@kali:~# dmesg | tail
[ 102.799060] cfg80211: DFS Master region: unset
[ 102.806207] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 102.822100] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 102.835183] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
[ 102.850651] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 102.866105] cfg80211: (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2300 mBm), (0 s)
[ 102.879303] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
[ 102.895005] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 103.629437] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 103.916633] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready