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how to install the drivers for usb adapter in raspberry pi (i am using raspbian wheezy) i am using usb wireless 802.II n wifi adapter. i tried the lsusb command but i am not able to get the device id of wifi adapter.when i tried using iwlist scan command ,wlan is not displayed instead only lo and eth 0 is displayed please help ? thank you in advance

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enter image description hereI see three reasons for this to happen:

  1. You have another device connected to the second USB port which needs a lot of power and the WLAN adapter doesn't get enough power any more. Try to connect the WLAN adapter or second USB device or both via an active USB hub to your pi

  2. Your WLAN adapter is broken. Try to connect it on your desktop or labtop and check whether lsusb returns some details.

  3. You have a very exotic WLAN adapter. Please post more details about your WLAN adapter. Maybe your seller has a webpage describing the WLAN adapter ?

  • even in desktop it does not give the id number, only shown that it is attached on bus no. – prince Dec 30 '14 at 8:19
  • Would you please copy/paste the output you get executing lsusb? – framp Dec 30 '14 at 8:56
  • screenshot has been attached. usb adapter is attached on bus 003 – prince Dec 31 '14 at 7:23
  • It No 3 :-) That's what I usually do when I know the ID of the device which causes an issue: I paste following string 'id "1487:7601" linux' into my internet search machine and got for your id multiple hits where people had the same issue. For example I got raspberrypi.org/forums/viewtopic.php?f=28&t=73298 askubuntu.com/questions/457061/… superuser.com/questions/774554/… – framp Jan 1 '15 at 20:54
  • yeah i found it thanks a lot :) but now after all configuration it does not shows that wifi name in scan list of my cell phone ? help – prince Jan 2 '15 at 17:07

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