ip a shows usb0 & usb1:
3: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether be:1a:f6:f2:2c:6d brd ff:ff:ff:ff:ff:ff
inet 192.168.6.2/24 brd 192.168.6.255 scope global usb0
valid_lft forever preferred_lft forever
inet6 fe80::bc1a:f6ff:fef2:2c6d/64 scope link
valid_lft forever preferred_lft forever
4: usb1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether be:1a:f6:f2:2c:70 brd ff:ff:ff:ff:ff:ff
inet 192.168.7.2/24 brd 192.168.7.255 scope global usb1
valid_lft forever preferred_lft forever
inet6 fe80::bc1a:f6ff:fef2:2c70/64 scope link
valid_lft forever preferred_lft forever
and here's the output of the journalctl command:
-- Logs begin at Thu 2016-11-03 17:16:43 UTC, end at Thu 2016-11-03 19:06:05 UTC. --
Nov 03 17:16:48 bela systemd[1]: Starting Configure Bela as a composite USB device...
Nov 03 17:16:49 bela bash[173]: cpsw_0_mac: [BE:1A:F6:F2:2C:6B]
Nov 03 17:16:49 bela bash[173]: cpsw_1_mac: [BE:1A:F6:F2:2C:6D]
Nov 03 17:16:49 bela bash[173]: cpsw_2_mac: [BE:1A:F6:F2:2C:6C]
Nov 03 17:16:49 bela bash[173]: cpsw_3_mac: [BE:1A:F6:F2:2C:6E]
Nov 03 17:16:49 bela bash[173]: cpsw_4_mac: [BE:1A:F6:F2:2C:6F]
Nov 03 17:16:49 bela bash[173]: cpsw_5_mac: [BE:1A:F6:F2:2C:70]
Nov 03 17:16:50 bela systemd[1]: Started Configure Bela as a composite USB device.