Re: Wireless driver is being recognized as wired driver

[Dan Williams <dcbw redhat com>]

On Tue, 2010-10-12 at 09:58 +0200, Jirka Klimes wrote:
> On Tuesday 12 of October 2010 09:04:25 panduranga wrote:
> > Hi all,
> > 
> > We are integrating Wireless LAN driver with Ubuntu GNOME on a customer
> > proprietary board.
> > 
> > The issue we are facing is that our network interface (WLAN) is being
> > recognized as wired interface by GNOME network-manager. We are using Ubuntu
> > 10.10.
> > 
> > But iwconfig is recognising xxxwlan0 interface as wireless.
> > iwlist scan is scanning the AP's.
> > 
> > If i stop network-manager and wpa_supplicant and load the drivers and then
> > start them, then it is being listed as wireless interface.
> > 
> > Please find the log below:
> > ===================
> > 
> > Oct  7 18:48:55 ubuntu-desktop modem-manager: (net/xxxwlan0): port's parent
> > platform driver is not whitelisted
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]:    SCPlugin-Ifupdown:
> > devices added (path: /sys/devices/platform/device_wifi.1/net/xxxwlan0,
> > iface: xxxwlan0)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]:    SCPlugin-Ifupdown:
> > device added (path: /sys/devices/platform/device_wifi.1/net/xxxwlan0,
> > iface: xxxwlan0): no ifupdown configuration found.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <error>
> > [1286457535.687011] [nm-device-ethernet.c:729]
> > real_update_permanent_hw_address(): (xxxwlan0): unable to read permanent
> > MAC address (error 95)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > driver 'device_wifi' does not support carrier detection.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0): new
> > Ethernet device (driver: 'device_wifi' ifindex: 3)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > exported as /org/freedesktop/NetworkManager/Devices/1
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0): now
> > managed
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 1 -> 2 (reason 2)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > bringing up device.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > deactivating device (reason: 2).
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Added default
> > wired connection 'Auto xxxwlan0' for
> > /sys/devices/platform/device_wifi.1/net/xxxwlan0
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 2 -> 3 (reason 0)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) starting connection 'Auto xxxwlan0'
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 3 -> 4 (reason 0)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 1 of 5 (Device Prepare) scheduled...
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 1 of 5 (Device Prepare) started...
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 2 of 5 (Device Configure) scheduled...
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 1 of 5 (Device Prepare) complete.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 2 of 5 (Device Configure) starting...
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 4 -> 5 (reason 0)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > bringing up device.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 5 -> 9 (reason 4)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Marking
> > connection 'Auto xxxwlan0' invalid.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <warn> Activation
> > (xxxwlan0) failed.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> Activation
> > (xxxwlan0) Stage 2 of 5 (Device Configure) complete.
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > device state change: 9 -> 3 (reason 0)
> > Oct  7 18:48:55 ubuntu-desktop NetworkManager[1634]: <info> (xxxwlan0):
> > deactivating device (reason: 0).
> > 
> > We want to know if we are missing some thing in the wlan driver.If anybody
> > has worked on the GNOME-Network Manager earlier or has a clue about this,
> > kindly share with us.
> > 
> > Please let us know if you need more details.
> > 
> > thanks,
> > Pandu.
> 
> It's probably a bug of device_wifi driver. What's the driver anyway?
> 
> What's the output of 
> 
> tree /sys/class/net/xxxwlan0
> and
> cat /sys/class/net/xxxwlan0/type

Right, this is almost always a driver bug.  It's usually one of two
things:

1) the driver does not respond to the SIOCGIWNAME WEXT ioctl
2) there is no /sys/class/net/<iface>/phy80211 directory (only relevant
for mac80211-based drivers)

see is_wireless() in src/nm-udev-manager.c.

Dan