在 2012-08-17 00:36:45,"Thomas Pedersen" <[email protected]> 写道:
>Hi 李申,
>
>On Wed, Aug 15, 2012 at 10:19 PM, 李申 <[email protected]> wrote:
>> Hello everyone,
>> I recently installed "iw" in order to use the mesh capability of my usb
>> wireless card.I have installed the "libnl-dev" and "libnl1" that "iw"
>> required.But whenever i run "iw" commands such as "iw list",it always
>> appears "nl80211 not found".
>
>This error means your driver was never loaded properly, or the device
>probe failed. modprobe the driver manually and check dmesg for clues.
>
>> My OS is Ubuntu 10.04 and i have upgraded  kernel to 3.6.0-rl1-wl.My usb
>> wireless card is D-Link DWL-G122 H/W:F1 F/W:6.10 with "r8712u" driver.Does
>> it support mesh?
>
>I'm not sure, maybe someone else can answer this.
>
>Thomas
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Thank you for your help. I think i have load the driver "r8712u" correctly 
because when i plug in the usb wireless card and  input "dmesg" ,the terminal 
shows as follow:

[ 1143.460035] usb 3-1: new full-speed USB device number 2 using uhci_hcd
[ 1143.892850] r8712u: module is from the staging directory, the quality is 
unknown, you have been warned.
[ 1143.894901] r8712u: Staging version
[ 1143.894930] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 1143.894934] r8712u: USB_SPEED_LOW with 4 endpoints
[ 1143.897053] r8712u: Boot from EFUSE: Autoload OK
[ 1146.648066] r8712u: CustomerID = 0x0000
[ 1146.648073] r8712u: MAC Address from efuse = 1c:7e:e5:ad:55:07
[ 1146.648077] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 1146.648146] usbcore: registered new interface driver r8712u
[ 1147.606058] r8712u: 1 RCR=0x153f00e
[ 1147.609060] r8712u: 2 RCR=0x553f00e
[ 1147.733121] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

Also after I input "lsmod" I can see the module "r8712u" and my usb wireless 
card can connect to our lab's wireless router.
Question:
Yesterday I tried to find and buy other type of usb wireless card whose driver 
is "p54usb" or "zd1211rw",so I print the device list from this page 
http://linuxwireless.org/en/users/Devices/USB .Unfortunately ,I searched almost 
electronic markets in local city and the store managers told me that the usb 
wireless cards on the list were outdated and stopped  production.
I think the device list is too old.In fact,I choose the  D-Link DWL-G122 as the 
list told me that its driver is "p54usb". But when I get the card I found that 
its driver is "r8712u". So could you give me some suggestions about the other 
newer type of usb wireless cards whose driver is "p54usb" or "zd1211rw"?D-Link 
or TP-Link will be better.
Another question:
When I plug in the D-Link DWL-G122 in Ubuntu BT5 the "iw" commands are 
usable.After I input "iw list" it only shows "Wiphy phy0" , I think it's my 
build-in wireless card but not the usb one.However I can use the usb one to 
link to wireless router.Could you tell me why?
By using "iw list" I can get the information "Supported interface modes:" 
include IBSS, managed,monitor(but no mesh). Does this mean that the wireless 
card do not support mesh?
Thanks again.


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