Description of problem:

We have a question for the NIC:RTL8111/8168B PCI Express Gigabit Ethernet controller.I don't know why the RTL8111/8168B PCI Express Gigabit Ethernet controller was recognised High Definition Audio.

This is NIC test log:https://hardware.redhat.com/results.cgi?cert_id=750691&id=239701  
This is INFO output log: https://hardware.redhat.com/hardware.cgi?md5=&type=&iteration=&filename=&format=raw&cert_id=750691&id=219043

We noticed this NCI's must pci_id is 10ec/8168 per INFO output log, for example:

<sinp>
udi=/org/freedesktop/Hal/devices/pci_10ec_8168
  info.linux.driver = r8169
  info.parent = /org/freedesktop/Hal/devices/pci_8086_27d4
  info.product = RTL8111/8168B PCI Express Gigabit Ethernet controller
  info.subsystem = pci
  info.udi = /org/freedesktop/Hal/devices/pci_10ec_8168
  info.vendor = Realtek Semiconductor Co., Ltd.
</sinp>

But,please take look at the following informations. Because when we search pci-id(eg:8168) in info outputlog to check its sub_id ,the 'desc' is 'Realtek Semiconductor Co., Ltd.|High Definition Audio'. so I am very confused.could you help to explain why the NIC be recognised as Audio? 

<snip> 
'class' : ''
  'bus' : 'pci'
  'class' : 'OTHER'
  'desc' : 'Realtek Semiconductor Co., Ltd.|High Definition Audio'
  'detached' : '0'
  'driver' : 'r8169'
  'pciType' : '1'
  'prop1' : '10EC'
  'prop2' : '8168'
  'prop3' : '14A4'
  'prop4' : '1054'
</snip>