dmesg | grep usb
I see for sure only mouse and keyboard
3.037491] usbcore: registered new interface driver usbfs
3.037506] usbcore: registered new interface driver hub
3.037537] usbcore: registered new device driver usb
3.056222] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
3.056225] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
3.056228] usb usb1: Product: EHCI Host Controller
3.056229] usb usb1: Manufacturer: Linux 4.1.15-8-default ehci_hcd
3.056231] usb usb1: SerialNumber: 0000:00:1a.0
3.058123] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
3.058127] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
3.058129] usb usb2: Product: xHCI Host Controller
3.058131] usb usb2: Manufacturer: Linux 4.1.15-8-default xhci-hcd
3.058133] usb usb2: SerialNumber: 0000:20:00.0
3.061152] usb usb3: We don't know the algorithms for LPM for this host, disabling LPM.
3.061194] usb usb3: New USB device found, idVendor=1d6b, idProduct=0003
3.061196] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
3.061199] usb usb3: Product: xHCI Host Controller
3.061201] usb usb3: Manufacturer: Linux 4.1.15-8-default xhci-hcd
3.061203] usb usb3: SerialNumber: 0000:20:00.0
3.076125] usb usb4: New USB device found, idVendor=1d6b, idProduct=0002
3.076128] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
3.076130] usb usb4: Product: EHCI Host Controller
3.076132] usb usb4: Manufacturer: Linux 4.1.15-8-default ehci_hcd
3.076134] usb usb4: SerialNumber: 0000:00:1d.0
3.368157] usb 1-1: new high-speed USB device number 2 using ehci-pci
3.432194] usb 4-1: new high-speed USB device number 2 using ehci-pci
3.500604] usb 1-1: New USB device found, idVendor=8087, idProduct=0020
3.500608] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
3.564641] usb 4-1: New USB device found, idVendor=8087, idProduct=0020
3.564644] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
3.772407] usb 1-1.1: new low-speed USB device number 3 using ehci-pci
3.836506] usb 4-1.3: new high-speed USB device number 3 using ehci-pci
3.873266] usb 1-1.1: New USB device found, idVendor=03f0, idProduct=0024
3.873270] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
3.873272] usb 1-1.1: Product: HP Basic USB Keyboard
3.873274] usb 1-1.1: Manufacturer: CHICONY
3.944513] usb 1-1.2: new low-speed USB device number 4 using ehci-pci
3.988649] usb 4-1.3: New USB device found, idVendor=04f2, idProduct=b169
3.988652] usb 4-1.3: New USB device strings: Mfr=2, Product=1, SerialNumber=0
3.988654] usb 4-1.3: Product: CNF8248
3.988655] usb 4-1.3: Manufacturer: Chicony Electronics Co., Ltd.
4.046002] usb 1-1.2: New USB device found, idVendor=1c4f, idProduct=0003
4.046006] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
4.046008] usb 1-1.2: Product: Usb Mouse
4.046011] usb 1-1.2: Manufacturer: SIGMACHIP
4.116691] usb 1-1.6: new high-speed USB device number 5 using ehci-pci
4.221526] usb 1-1.6: New USB device found, idVendor=0bda, idProduct=0138
4.221532] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
4.221536] usb 1-1.6: Product: USB2.0-CRW
4.221539] usb 1-1.6: Manufacturer: Generic
4.221542] usb 1-1.6: SerialNumber: 20090516388200000
5.402286] usbcore: registered new interface driver usbhid
5.402289] usbhid: USB HID core driver
5.402445] usbcore: registered new interface driver usb-storage
5.403595] usbcore: registered new interface driver uas
5.434221] scsi host6: usb-storage 1-1.6:1.0
5.434426] usbcore: registered new interface driver ums-realtek
5.446196] input: CHICONY HP Basic USB Keyboard as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/0003:03F0:0024.0001/input/input18
5.505895] hid-generic 0003:03F0:0024.0001: input,hidraw0: USB HID v1.10 Keyboard [CHICONY HP Basic USB Keyboard] on usb-0000:00:1a.0-1.1/input0
5.506067] input: SIGMACHIP Usb Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:1C4F:0003.0002/input/input19
5.506855] hid-generic 0003:1C4F:0003.0002: input,hidraw1: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-0000:00:1a.0-1.2/input0
5.521526] input: CNF8248 as /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.3/4-1.3:1.0/input/input21
5.521746] usbcore: registered new interface driver uvcvideo
5.609544] usb 1-1.6: USB disconnect, device number 5
8916.834244] usb 1-1-port2: disabled by hub (EMI?), re-enabling...
8916.834450] usb 1-1.2: USB disconnect, device number 4
8917.072113] usb 1-1.2: new low-speed USB device number 6 using ehci-pci
8917.169662] usb 1-1.2: New USB device found, idVendor=1c4f, idProduct=0003
8917.169670] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
8917.169674] usb 1-1.2: Product: Usb Mouse
8917.169678] usb 1-1.2: Manufacturer: SIGMACHIP
8917.173725] input: SIGMACHIP Usb Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:1C4F:0003.0003/input/input30
8917.174130] hid-generic 0003:1C4F:0003.0003: input,hidraw1: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-0000:00:1a.0-1.2/input0