求救 ,arm开发板无法使用iwlist iw等命令
各位大神,我的arm9开发板移植好USB无线网卡后,ifconfig能够配置wlan0,但使用iwlist iw iwconfig这些命令时就会有错,
]#ifconfig
eth0 Link encap:Ethernet HWaddr 00:04:9F:00:CC:DD
inet addr:192.168.0.13 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:502 errors:0 dropped:0 overruns:0 frame:0
TX packets:170 errors:0 dropped:0 overruns:0 carrier:0
collisions:48 txqueuelen:1000
RX bytes:276163 (269.6 KiB) TX bytes:15054 (14.7 KiB)
Interrupt:53 Base address:0x4300
wlan0 Link encap:Ethernet HWaddr 00:13:EF:40:09:94
UP BROADCAST RUNNING 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)
#iwconfig
lo no wireless extensions.
wlan0 no wireless extensions.
eth0 no wireless extensions.
]#iwlist wlan0 scan
wlan0 Interface doesn't support scanning.
好像是它们识别不到我的USB无线网卡,但是
#cat /sys/class/net/wlan0/
addr_assign_type dormant mtu subsystem/
addr_len duplex netdev_group tx_queue_len
address flags operstate type
broadcast ifalias power/ uevent
carrier ifindex queues/
dev_id iflink speed
device/ link_mode statistics/
这里是有东西的,
#cat /proc/bus/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 3.04
S: Manufacturer=Linux 3.4.2 ohci_hcd
S: Product=S3C24XX OHCI
S: SerialNumber=s3c24xx
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0bda ProdID=8176 Rev= 2.00
S: Manufacturer=Realtek
S: Product=802.11n WLAN Adapter
S: SerialNumber=00e04c000001
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8192cu
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=84(I) Atr=03(Int.) MxPS= 64 Ivl=1ms
这里好像也没啥问题,
但就是用不了上面的命令,用iw wlan0 scan时提示:iw wlan0 scan
command failed: No such device (-19)
看我的板子没有/dev/bus/usb目录,会不会是这里的问题,如果是,要怎么修改