HP Elitebook 8540w

lspci
lspci -k

lsusb
lsusb

The real USB devices (except hubs) are:
 * Bluetooth module by Broadcom (ID 03f0:231d Hewlett-Packard)
 * 2Mpx Webcam (ID 04f2:b15e Chicony Electronics Co., Ltd)
 * Fingerprint reader (ID 138a:0007 DigitalPersona, Inc)