% dmesg
uaudio0: audio rev 1.00
pcm1: <USB Audio> on uaudio0
uhid0: Philips Electronics Philips USB Digital Speaker System, rev
1.00/1.00, addr 3, iclass 3/0

% cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <Yamaha DS-1E (YMF724F)> at memory 0xda000000 irq 5 (4p/2r/0v channels
duplex)
pcm1: <USB Audio> at addr ? (1p/0r/0v channels)

# usbdevs -v
Controller /dev/usb0:
addr 1: self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00
 port 2 addr 3: self powered, config 1, Philips USB Digital Speaker System(0x0104), Philips Electronics(0x0471), rev 1.00