It could also very well be that you just need to wail for wlan0 interface at startup
because it is not yet ready when trying to configure it?
I added this in my /etc/init.d/network scripts’ start-function:
echo "Waiting for wlan0 ... "
waittime=30
while [ ! -d /sys/class/net/wlan0 ] && [ $waittime -gt 0 ]; do
sleep 1
let waittime=$waittime-1
done
if [ ! -d /sys/class/net/wlan0 ]; then
echo "ERROR: Did not find wlan0 interface after 30 seconds"
fi
ifup -a > /dev/null
On 27 May 2018, at 18:03, Waldemar Brodkorb
<wbx(a)openadk.org> wrote:
Hi Mike,
Mike Thompson wrote,
With a basic build of OpenADK for the Raspberry
Pi 3, I'm getting the following
error when I try to bring up wlan0.
# ifup wlan0
ip: SIOCGIFFLAGS: No such device
command failed: No such device (-19)
Successfully initialized wpa_supplicant
Could not read interface wlan0 flags: No such device
nl80211: Driver does not support authentication/association or connect commands
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Could not read interface wlan0 flags: No such device
wlan0: Failed to initialize driver interface
ip: SIOCGIFFLAGS: No such device
In /etc/network/interface, I have the following configured:
auto wlan0
iface wlan0 inet dhcp
wireless-ssid HomeWiFi
wireless-mode sta
wireless-security wpa2
wireless-passphrase XXXXXXXXXXXX
I presume there is an additional configuration for OpenADK required to enable
wlan0 on the Raspberry Pi 3, but I don't see anything obvious. I have the
'iw'
and 'wpa_supplicant' packages enabled, but that doesn't seem to be the
issue.
Any tips on what I might be missing?
I do not think you missed anything, it is just a Bug.
I once started to try to make it work, but got distracted.
I look into it again. Strange thing, I installed Libreelec for
Testing on my RPI3 and even this did not recognized the Wifi device.
I am starting now with Raspbian to see what I am missing.
Hard to find an detailed information, which Linux kernel config
symbols are required and what firmware files need to be installed.
best regards
Waldemar
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