[CentOS] New wireless controller

Fri Sep 2 17:15:11 UTC 2011
Robert Heller <heller at deepsoft.com>

At Fri, 02 Sep 2011 17:46:24 +0100 CentOS mailing list <centos at centos.org> wrote:

> 
> On 02/09/11 04:54, Emmett Culley wrote:
> > I just installed an Asus PCE-n13 wireless card into one of my CentOS 5.6 systems.  It uses the RaLink 2680 chip set and I was able to get the driver loaded using modprobe rt2x00pci.ko.  I saw no error and now see that the module is loaded along with mac80211 and other dependencies.
> >
> > Now I need to know how to create the wlan0 device.  I can find nothing via Google searches on how to create that device.  I assumed the driver would do that upon loading, but now I expect some ioctl to the driver command may be required.
> >
> > I created an ifcfg-wlan0 file, but of course ifup wlan0 always returns device not found.
> >
> > Can somebody tell me where to start on getting the wlan0 device created?
> >
> > Emmett
> 
> Hi Emmett,
> 
> Are you sure that's the right driver?
> 
> My guess is you might want the Ralink rt2860sta driver if it's a 2680 
> chipset. See here:
> 
> http://elrepo.org/tiki/kmod-rt2860sta
> 
> Anyway, to know for sure, please post the output from the following 
> command (all one line):
> 
> for BUSID in $(/sbin/lspci | awk '{ IGNORECASE=1 } /net/ { print $1 }'); 
> do /sbin/lspci -s $BUSID -m; /sbin/lspci -s $BUSID -n; done
> 
> Also, those Ralink wireless network drivers tend to be built with 
> support for NetworkManager so you should generally enable the 
> NetworkManager service (and disable network and wpa_supplicant services) 
> and let NetworkManager control the device.

Another thing to check:  *Most* wireless cards also need firmware, which
is not always included with the drivers, due to various copyright / IP
issues. Without the firmware, the driver won't fully initialize and not
create the device.

> 
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>                                                                        

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Robert Heller             -- 978-544-6933 / heller at deepsoft.com
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