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I've created with Yocto a Linux image for an IMX6 device. I've modified the /etc/network/interface file in order to setup usb0 and wlan0.

No problem with usb0, it's correctly setup at boot time. It does not work as expected for wlan0.

My /etc/network/interface looks like:

auto usb0
iface usb0 inet static
    address 192.168.1.1
    broadcast 192.168.1.255
    netmask 255.255.255.0


auto wlan0
iface wlan0 inet dhcp
    wpa-conf /etc/wpa_supplicant.conf

The wpa_supplicant.conf looks like:

network={
    ssid="my_own_ssid"
    psk_mgmt=NONE
}

Having that done, if I tried:

ifup wlan0

I get:

udhcpc (v1.24.2) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing

Same thing if I do:

/etc/init.d/S40network restart

However, I type the following command before:

wpa_supplicant -B -iwlan0 -c /etc/wpa_supplicant.conf -Dwext
ifup wlan0

It works. I'm not a Linux expert, but I was understanding that wpa_supplicant was called by /etc/network daemon.

How can I do to have wlan0 setup at boot time ? Any suggestion is welcome.

Z.

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