Realtek-Semiconductor-Corp.

Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter

ENCORE ELECTRONICS ENUWI-SN4
Adaptador Inalambrico N150 Mini USB
TRENDnet N150 Mini Wireless USB Adapter [TEW-648UB]

0bda:8171

2012

USB

parabola , trisquel_5_5 , trisquel_6_0

3.0.0-20-generic, 3.12.0-1 3.12.0-1, 3.2.0-38-generic

no

r8712u

[p]The Realtek RTL8188SU chipset requires the non-free firmware rtl8192sfw.bin to get it work.[/p]

[p]lsusb -v[/p]

[code]
Bus 001 Device 006: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
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 0x8171 RTL8188SU 802.11n WLAN Adapter
bcdDevice 2.00
iManufacturer 1 Manufacturer Realtek
iProduct 2 11n USB Adapter
iSerial 3 00e04c000001
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 0x83 EP 3 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 0x04 EP 4 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 0x06 EP 6 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 0x0d EP 13 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
[/code]

As of linux-libre 3.12 a staging driver called r8712u is included that may work with this dongle, but no free firmware exists for it. This is a typical [i]dmesg[/i] output produced when the device is connected:
[p]dmesg[/p]
[code]
[ 3345.396414] usb 3-2: new high-speed USB device number 2 using ehci-pci
[ 3345.782885] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 3345.787954] r8712u: Staging version
[ 3345.788042] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 3345.788058] usb 3-2: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 3345.791829] usb 3-2: r8712u: Boot from EFUSE: Autoload OK
[ 3346.559825] usb 3-2: r8712u: CustomerID = 0x0000
[ 3346.559842] usb 3-2: r8712u: MAC Address from efuse = b0:48:7a:90:9b:4d
[ 3346.559850] usb 3-2: r8712u: Loading firmware from "/*(DEBLOBBED)*/"
[ 3346.559856] 3-2: Missing Free firmware
[ 3346.559871] usb 3-2: r8712u: Firmware request error -22
[/code]