[CentOS] New wireless controller
Emmett Culley
emmett at webengineer.com
Fri Sep 2 16:45:13 UTC 2011
On 09/01/2011 10:10 PM, Barry Brimer 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?
>
> What is the output of iwconfig?
>
> What is the output of ifconfig -a
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[root at sbbusx ~]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 no wireless extensions.
ppp0 no wireless extensions.
[root at sbbusx ~]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:25:90:33:11:80
inet addr:192.168.6.99 Bcast:192.168.6.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:544 errors:0 dropped:0 overruns:0 frame:0
TX packets:618 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:61246 (59.8 KiB) TX bytes:149248 (145.7 KiB)
Interrupt:177 Memory:feae0000-feb00000
eth1 Link encap:Ethernet HWaddr 00:25:90:33:11:81
inet addr:172.19.255.254 Bcast:172.19.255.255 Mask:255.255.0.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:169 Memory:febe0000-fec00000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1532 errors:0 dropped:0 overruns:0 frame:0
TX packets:1532 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:297812 (290.8 KiB) TX bytes:297812 (290.8 KiB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:xxx.yyy.z.qq P-t-P:xx.y.z.qqq Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:231 errors:0 dropped:0 overruns:0 frame:0
TX packets:232 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:28657 (27.9 KiB) TX bytes:21865 (21.3 KiB)
Also, in the syslog I see this when I run modprobe rt2x00pci.ko:
Sep 2 09:25:08 bus kernel: cfg80211: Calling CRDA to update world regulatory domain
Sep 2 09:25:08 bus kernel: cfg80211: World regulatory domain updated:
Sep 2 09:25:08 bus kernel: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 2 09:25:08 bus kernel: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 2 09:25:08 bus kernel: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 2 09:25:08 bus kernel: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 2 09:25:08 bus kernel: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 2 09:25:08 bus kernel: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Now I am thinking that perhaps the driver doesn't see the new hardware. I'll try it with the adapter removed.
Emmett
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