[ 1584.787955] usb 1-2.1: new high-speed USB device number 5 using xhci_hcd
[ 1585.048801] usb 1-2.1: config 1 interface 0 altsetting 0 bulk endpoint 0x83 has invalid maxpacket 64
[ 1585.048804] usb 1-2.1: config 1 interface 0 altsetting 0 bulk endpoint 0x4 has invalid maxpacket 64
[ 1585.049773] usb 1-2.1: New USB device found, idVendor=0cf3, idProduct=9271
[ 1585.049775] usb 1-2.1: New USB device strings: Mfr=16, Product=32, SerialNumber=48
[ 1585.049776] usb 1-2.1: Product: USB2.0 WLAN
[ 1585.049777] usb 1-2.1: Manufacturer: ATHEROS
[ 1585.049778] usb 1-2.1: SerialNumber: 12345
[ 1585.052375] usb 1-2.1: ath9k_htc: Firmware htc_9271.fw requested
[ 1585.318924] usb 1-2.1: ath9k_htc: Firmware - htc_9271.fw download failed
[ 1585.319026] usb 1-2.1: ath9k_htc: USB layer deinitialized