linux-kernel - linux-3.0-rc4, wlan0 device is not showing with ifconfig

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Date:	Mon, 27 Jun 2011 17:42:01 +0200
From:	Stephan Raue <mailinglists@...nelec.tv>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-3.0-rc4, wlan0 device is not showing with ifconfig

Hi,

running linux-3.0-rc4 my wlan0 device is not showing with ifconfig, even 
if the driver (r8712u) loads successfull.

strace ifconfig shows:

ioctl(3, SIOCGIFFLAGS, {ifr_name="wlan0", 
ifr_flags=IFF_BROADCAST|IFF_MULTICAST}) = 0
ioctl(3, SIOCGIFHWADDR, {ifr_name="wlan0", 
ifr_hwaddr=80:1f:02:0b:5d:9a}) = 0
ioctl(3, SIOCGIFMETRIC, {ifr_name="wlan0", ifr_metric=0}) = 0
ioctl(3, SIOCGIFMTU, {ifr_name="wlan0", ifr_mtu=1500}) = 0
ioctl(3, SIOCGIFMAP, {ifr_name="wlan0", ifr_map={mem_start=0, mem_end=0, 
base_addr=0, irq=0, dma=0, port=0}}) = 0
ioctl(3, SIOCGIFTXQLEN, {ifr_name="wlan0", ifr_qlen=1000}) = 0
ioctl(3, SIOCGIFADDR, {ifr_name="wlan0", ???}) = -1 EADDRNOTAVAIL 
(Cannot assign requested address)
close(3)                                = 0

the interface will be shown after i setup a ipadress manually:

ifconfig wlan0 192.68.0.13
strace ifconfig

ioctl(3, SIOCGIFFLAGS, {ifr_name="wlan0", 
ifr_flags=IFF_UP|IFF_BROADCAST|IFF_MULTICAST}) = 0
ioctl(3, SIOCGIFHWADDR, {ifr_name="wlan0", 
ifr_hwaddr=80:1f:02:0b:5d:9a}) = 0
ioctl(3, SIOCGIFMETRIC, {ifr_name="wlan0", ifr_metric=0}) = 0
ioctl(3, SIOCGIFMTU, {ifr_name="wlan0", ifr_mtu=1500}) = 0
ioctl(3, SIOCGIFMAP, {ifr_name="wlan0", ifr_map={mem_start=0, mem_end=0, 
base_addr=0, irq=0, dma=0, port=0}}) = 0
ioctl(3, SIOCGIFTXQLEN, {ifr_name="wlan0", ifr_qlen=1000}) = 0
ioctl(3, SIOCGIFADDR, {ifr_name="wlan0", ifr_addr={AF_INET, 
inet_addr("168.0.0.13")}}) = 0
ioctl(3, SIOCGIFDSTADDR, {ifr_name="wlan0", ifr_dstaddr={AF_INET, 
inet_addr("168.0.0.13")}}) = 0
ioctl(3, SIOCGIFBRDADDR, {ifr_name="wlan0", ifr_broadaddr={AF_INET, 
inet_addr("168.0.255.255")}}) = 0
ioctl(3, SIOCGIFNETMASK, {ifr_name="wlan0", ifr_netmask={AF_INET, 
inet_addr("255.255.0.0")}}) = 0

is this problem known and is there a fix for this?

many thanks

Stephan
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