[tom@localhost ~]$ lsmod | grep hci
ahci                   36864  2 
libahci                28672  1 ahci
libata                184320  2 ahci,libahci
xhci_pci               16384  0 
ehci_pci               16384  0 
xhci_hcd              155648  1 xhci_pci
ehci_hcd               73728  1 ehci_pci
usbcore               200704  7 uas,usb_storage,ehci_hcd,ehci_pci,usbhid,xhci_hcd,xhci_pci
[tom@localhost ~]$ lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
    |__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=uas, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/14p, 480M
    |__ Port 13: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 13: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 13: Dev 2, If 2, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 14: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 12M
    |__ Port 14: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 12M
[tom@localhost ~]$ lsinitcpio /boot/initramfs-linux.img | grep hci
./usr/lib/modules/4.0.1-1-ARCH/kernel/ahci.ko
./usr/lib/modules/4.0.1-1-ARCH/kernel/libahci.ko
./usr/lib/modules/4.0.1-1-ARCH/kernel/ehci-pci.ko
./usr/lib/modules/4.0.1-1-ARCH/kernel/xhci-hcd.ko
./usr/lib/modules/4.0.1-1-ARCH/kernel/xhci-pci.ko
./usr/lib/modules/4.0.1-1-ARCH/kernel/ehci-hcd.ko
[tom@localhost ~]$ journalctl -b | grep hci
May 04 23:52:56 localhost kernel: ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
May 04 23:52:56 localhost kernel: ehci-pci: EHCI PCI platform driver
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: xHCI Host Controller
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x00009810
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: cache line size of 64 is not supported
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: xHCI Host Controller
May 04 23:52:56 localhost kernel: xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: EHCI Host Controller
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: new USB bus registered, assigned bus number 3
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: debug port 2
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: cache line size of 64 is not supported
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: irq 20, io mem 0xf7214000
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1a.0: USB 2.0 started, EHCI 1.00
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: EHCI Host Controller
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 4
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: debug port 2
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: irq 23, io mem 0xf7213000
May 04 23:52:56 localhost kernel: ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
May 04 23:52:56 localhost kernel: ahci 0000:00:1f.2: version 3.0
May 04 23:52:56 localhost kernel: ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0x3 impl SATA mode
May 04 23:52:56 localhost kernel: ahci 0000:00:1f.2: flags: 64bit ncq led clo pio slum part ems apst 
May 04 23:52:56 localhost kernel: scsi host0: ahci
May 04 23:52:56 localhost kernel: scsi host1: ahci
May 04 23:52:56 localhost kernel: scsi host2: ahci
May 04 23:52:56 localhost kernel: scsi host3: ahci
May 04 23:52:56 localhost kernel: scsi host4: ahci
May 04 23:52:56 localhost kernel: scsi host5: ahci
May 04 23:52:56 localhost kernel: usb 2-2: new SuperSpeed USB device number 2 using xhci_hcd
May 04 23:52:56 localhost kernel: usb 3-1: new high-speed USB device number 2 using ehci-pci
May 04 23:52:56 localhost kernel: usb 4-1: new high-speed USB device number 2 using ehci-pci
May 04 23:52:56 localhost kernel: usb 1-13: new full-speed USB device number 2 using xhci_hcd
May 04 23:52:56 localhost kernel: usb 1-14: new full-speed USB device number 3 using xhci_hcd
[tom@localhost ~]$