shell@beagleboneblack:/ # dmesg | grep -i usb
<6>[    0.158172] usbcore: registered new interface driver usbfs
<6>[    0.158264] usbcore: registered new interface driver hub
<6>[    0.158355] usbcore: registered new device driver usb
<6>[    0.158477] musb-ti81xx musb-ti81xx: musb0, board_mode=0x11, plat_mode=0x1
<6>[    0.158599] musb-ti81xx musb-ti81xx: musb1, board_mode=0x11, plat_mode=0x1
<6>[    0.184906] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
<6>[    0.185089] musb-hdrc musb-hdrc.0: dma type: dma-cppi41
<6>[    0.185241] MUSB0 controller's USBSS revision = 4ea20800
<7>[    0.185272] musb-hdrc musb-hdrc.0: host: value of mode reg=0 regval(0)
<6>[    0.185272] musb0: Enabled SW babble control
<7>[    0.185272] musb-hdrc musb-hdrc.0: musb.misc regval 44
<7>[    0.185302] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
<7>[    0.185302] musb-hdrc: MHDRC RTL version 2.0
<7>[    0.185302] musb-hdrc: setup fifo_mode 4
<7>[    0.185333] musb-hdrc: 28/31 max ep, 16384/16384 memory
<7>[    0.185363] musb-hdrc.0: bulk split disabled
<7>[    0.185363] musb-hdrc.0: bulk combine disabled
<6>[    0.185424] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
<6>[    0.185516] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
<6>[    0.185638] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
<6>[    0.185638] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[    0.185668] usb usb1: Product: MUSB HDRC host driver
<6>[    0.185668] usb usb1: Manufacturer: Linux 3.2.0-00245-g03f2a1e-dirty musb-hcd
<6>[    0.185668] usb usb1: SerialNumber: musb-hdrc.0
<6>[    0.186096] hub 1-0:1.0: USB hub found
<6>[    0.186523] musb-hdrc musb-hdrc.0: USB Host mode controller at e083c000 using PIO, IRQ 18
<6>[    0.186706] musb-hdrc musb-hdrc.1: dma type: dma-cppi41
<6>[    0.186828] MUSB1 controller's USBSS revision = 4ea20800
<7>[    0.186859] musb-hdrc musb-hdrc.1: host: value of mode reg=0 regval(0)
<6>[    0.186859] musb1: Enabled SW babble control
<7>[    0.186859] musb-hdrc musb-hdrc.1: musb.misc regval 44
<7>[    0.186889] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
<7>[    0.186889] musb-hdrc: MHDRC RTL version 2.0
<7>[    0.186920] musb-hdrc: setup fifo_mode 4
<7>[    0.186920] musb-hdrc: 28/31 max ep, 16384/16384 memory
<7>[    0.186950] musb-hdrc.1: bulk split disabled
<7>[    0.186950] musb-hdrc.1: bulk combine disabled
<6>[    0.186981] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
<6>[    0.187011] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 2
<6>[    0.187103] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
<6>[    0.187103] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[    0.187133] usb usb2: Product: MUSB HDRC host driver
<6>[    0.187133] usb usb2: Manufacturer: Linux 3.2.0-00245-g03f2a1e-dirty musb-hcd
<6>[    0.187133] usb usb2: SerialNumber: musb-hdrc.1
<6>[    0.187469] hub 2-0:1.0: USB hub found
<6>[    0.187774] musb-hdrc musb-hdrc.1: USB Host mode controller at e083e800 using PIO, IRQ 19
<7>[    0.239990] musb-hdrc musb-hdrc.1: usbintr (100) epintr(0)
<7>[    0.240020] musb-hdrc musb-hdrc.1: Only micro-A plug is connected
<7>[    0.240020] musb-hdrc musb-hdrc.1: VBUS on (a_idle), devctl 19
<6>[    2.046508] usbcore: registered new interface driver cdc_ether
<6>[    2.052673] usbcore: registered new interface driver cdc_eem
<6>[    2.058624] usbcore: registered new interface driver dm9601
<6>[    2.064514] usbcore: registered new interface driver cdc_subset
<6>[    2.074157] usbcore: registered new interface driver cdc_ncm
<6>[    2.080139] usbcore: registered new interface driver cdc_acm
<6>[    2.086059] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
<6>[    2.094421] Initializing USB Mass Storage driver...
<6>[    2.099639] usbcore: registered new interface driver usb-storage
<6>[    2.105926] USB Mass Storage support registered.
<6>[    2.110839] usbcore: registered new interface driver usbserial
<6>[    2.117004] USB Serial support registered for generic
<6>[    2.122344] usbcore: registered new interface driver usbserial_generic
<6>[    2.129150] usbserial: USB Serial Driver core
<6>[    2.133758] USB Serial support registered for GSM modem (1-port)
<6>[    2.140167] usbcore: registered new interface driver option
<6>[    2.145996] option: v0.7.2:USB Driver for GSM modems
<6>[    2.268768] usbcore: registered new interface driver uvcvideo
<6>[    2.274780] USB Video Class driver (1.1.1)
<6>[    2.821319] usbcore: registered new interface driver usbhid
<6>[    2.827209] usbhid: USB HID core driver
<6>[    2.851928] usbcore: registered new interface driver snd-usb-audio