04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5287] (rev 01)

04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5287 (rev 01)
	Subsystem: Acer Incorporated [ALI] Device 108f
	Flags: bus master, fast devsel, latency 0, IRQ 128
	Memory at b4205000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at b4210000 [disabled] [size=64K]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Endpoint, MSI 00
	Capabilities: [b0] MSI-X: Enable- Count=1 Masked-
	Capabilities: [d0] Vital Product Data
	Capabilities: [100] Advanced Error Reporting
	Capabilities: [140] Virtual Channel
	Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
	Capabilities: [170] Latency Tolerance Reporting
	Capabilities: [178] L1 PM Substates
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci

Slot:	04:00.0
Class:	Unassigned class [ff00]
Vendor:	Realtek Semiconductor Co., Ltd. [10ec]
Device:	Device [5287]
SVendor:	Acer Incorporated [ALI] [1025]
SDevice:	Device [108f]
Rev:	01

lspci
07:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01)

hwinfo --pci
16: PCI 700.0: ff00 Unclassified device
  [Created at pci.378]
  Unique ID: aK5u.adR2XgUHX40
  Parent ID: Muvi.llBTHDzMRv9
  SysFS ID: /devices/pci0000:00/0000:00:1d.5/0000:07:00.0
  SysFS BusID: 0000:07:00.0
  Hardware Class: unknown
  Model: "Realtek RTL8411B PCI Express Card Reader"
  Vendor: pci 0x10ec "Realtek Semiconductor Co., Ltd."
  Device: pci 0x5287 "RTL8411B PCI Express Card Reader"
  SubVendor: pci 0x1025 "Acer Incorporated [ALI]"
  SubDevice: pci 0x1264 
  Revision: 0x01
  Driver: "rtsx_pci"
  Driver Modules: "rtsx_pci"
  Memory Range: 0xa4205000-0xa4205fff (rw,non-prefetchable)
  Memory Range: 0xa4210000-0xa421ffff (ro,non-prefetchable,disabled)
  IRQ: 126 (14 events)
  Module Alias: "pci:v000010ECd00005287sv00001025sd00001264bcFFsc00i00"
  Driver Info #0:
    Driver Status: rtsx_pci is active
    Driver Activation Cmd: "modprobe rtsx_pci"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #30 (PCI bridge)