[ 2219.753495] usb 1-2.1: USB disconnect, device number 6
[ 2224.064221] usb 1-2.1: new full-speed USB device number 10 using ehci_hcd
[ 2224.179520] cannot find the slot for index 0 (range 0-1), error: -16
[ 2224.179526] cannot create card instance 0
[ 2224.179535] snd-usb-audio: probe of 1-2.1:1.0 failed with error -5
[ 2224.182198] input: Plantronics Plantronics Headset as /devices/pci0000:00/000
0:00:1d.7/usb1/1-2/1-2.1/1-2.1:1.3/input/input12
[ 2224.182484] generic-usb 0003:047F:0CA1.0005: input,hidraw3: USB HID v1.00 Dev
ice [Plantronics Plantronics Headset] on usb-0000:00:1d.7-2.1/input3