Home » Hardware » wifi cards » Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
wifi card Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
model: Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter(model id: 1133)
possible other names of the device:
TP-LINK TL-WN821N v4.1 Wireless N300 USB Adapter, 300Mbps
TP-Link TL-WN821N v4.2 Wireless N300 USB Adapter, 300Mbps
vendor:
Realtek Semiconductor Corp.
VendorID:ProductID code of the device:
0bda:8178
year of commercialization:
2009
interface:
USB
tested on:
Trisquel 6.0 Toutatis
tested with the following kernel libre:
3.0.0.31-generic
3.13.0-39-lowlatency
does it work with free software?
no
free driver used:
rtl8192cu
Description:

This product seems to be the newest in the TP-Link TL-WN821N line, unlike previous versions it requires nonfree firmware to run. Note in some online product listings it is impossible to find the "v" number before receiving the product.

For v4.2, tested on Trisquel 7.0

lsusb

Bus 002 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter

lsusb -v

Bus 002 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0bda Realtek Semiconductor Corp.
  idProduct          0x8178 RTL8192CU 802.11n WLAN Adapter
  bcdDevice            2.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 3 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           46
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           4
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1

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