root@DD-WRT:~# lsmod|grep usb

usblp                   8996  0

usbcore               118161  4 usblp,ohci_hcd,ehci_hcd

usb_common              1146  1 usbcore

root@DD-WRT:~# lsusb

-sh: lsusb: not found

root@DD-WRT:~# uname -a

Linux DD-WRT 3.10.102 #28624 Thu Nov 30 14:01:34 CET 2017 mips DD-WRT

root@DD-WRT:~# dmesg|grep -i usb

<6>[  552.770000] usbcore: registered new interface driver usbfs

<6>[  552.780000] usbcore: registered new interface driver hub

<6>[  552.790000] usbcore: registered new device driver usb

<6>[  552.880000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

<7>[  552.880000] drivers/usb/host/ehci-ar71xx.c: starting AR7100 EHCI USB Controller...done. reset 0x40 usb config 0x30000

<6>[  554.800000] ar71xx-ehci ar71xx-ehci.0: new USB bus registered, assigned bus number 1

<6>[  554.850000] ar71xx-ehci ar71xx-ehci.0: USB 2.0 started, EHCI 1.00

<6>[  554.850000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

<6>[  554.860000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

<6>[  554.870000] usb usb1: Product: Atheros AR71xx built-in EHCI controller

<6>[  554.870000] usb usb1: Manufacturer: Linux 3.10.102 ehci_hcd

<6>[  554.880000] usb usb1: SerialNumber: platform

<6>[  554.880000] hub 1-0:1.0: USB hub found

<6>[  555.100000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

<7>[  555.100000] drivers/usb/host/ohci-ar71xx.c: starting AR7100 OHCI USB Controller...

<6>[  555.110000] ar71xx-ohci ar71xx-ohci.0: new USB bus registered, assigned bus number 2

<6>[  555.180000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001

<6>[  555.190000] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1

<6>[  555.190000] usb usb2: Product: Atheros AR71xx built-in OHCI controller

<6>[  555.200000] usb usb2: Manufacturer: Linux 3.10.102 ohci_hcd

<6>[  555.210000] usb usb2: SerialNumber: platform

<6>[  555.210000] hub 2-0:1.0: USB hub found

<6>[  555.500000] usbcore: registered new interface driver usblp