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I have recently purchased a Model 2 Pi and a TP-Link WN725N wireless USB device. According to what I have read, since it is a V2 WN725N device, I need to download and install the Realtek 8188eu driver. However, before i do that i need to run "lsusb" to get the hex identifier so I know which drive to download. The problem is the device isn't listed when I run lsusb.

How do I get the Pi to "see" the device?

Output from dmesg 

r8188eu 1-1.5:1.0: Direct firmware load for rtlwifi/rtl8188eufw.bin failed with error -2  
r8188eu 1-1.5:1.0: Firmware rtlwifi/rtl8188eufw.bin not available  
MAC Address = e8:94:f6:15:da:6a  
usb 1-1.5: USB Disconnect, device number 9  
R8188EU: ERROR indicate disassoc
jonnyknowsbest
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1 Answers1

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From the dmesg output, you see that the driver r8188eu recognizes the WiFi dongle, but cannot load firmware for it, since the firmware file cannot be found.

The Raspberry Pi forum has two threads about getting these WiFi devices to work under Raspbian.

Normally USB devices can be seen in the lsusb output even if a suitable driver is not available. I believe the dongle did not show up, because it is disconnected when the firmware is not found, as the last two dmesg lines show.

I found that the regular Debian package firmware-realtek contains the required file. This would be a clean and convenient way to get it, but on my Raspbian I don't have this file, even though the package is installed.

Frepa
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