Hi,
Host OS: Ubuntu 16.04 LTS x86_64
Target: ConnectCore i.MX6UL Starter
Target OS: Embedded Linux
Build Environment: Digi Embedded Yocto 2.2
Issue: Can’t turn up Wlan0 interface
I’m trying to add connectivity features to the dey-image-tiny.
For that I created a dey-image-tiny.bbappend file which is the same as dey-image-tiny.bb and adding to it the following: (located here: /usr/local/dey-2.2/sources/meta-digi/meta-digi-dey/recipes-core/images/)
- On IMAGE_INSTALL I added this package:
- networkmanager
- Adding to the file IMAGE_FEATURES, that looks like:
IMAGE_FEATURES += "
dey-network
ssh-server-dropbear
${@bb.utils.contains(‘MACHINE_FEATURES’, ‘wifi’, ‘dey-wireless’, ‘’, d)}
"
*
Then compiling and have my flash images.
Once on the target, I do ifconfig and can’t see the wlan0 interface:
root@ccimx6ulstarter:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:40:9d:98:b4:ea
inet addr:10.135.9.65 Bcast:10.135.15.255 Mask:255.255.248.0
inet6 addr: fe80::240:9dff:fe98:b4ea/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2157 errors:0 dropped:0 overruns:0 frame:0
TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:212413 (207.4 KiB) TX bytes:3164 (3.0 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:2 errors:0 dropped:0 overruns:0 frame:0
TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:78 (78.0 B) TX bytes:78 (78.0 B)
I tried to up it manually, but interfaces file under /etc/network doesn’t exist:
root@ccimx6ulstarter:~# ifup wlan0
ifup: can’t open ‘/etc/network/interfaces’: No such file or directory
After I tried to configure the WiFi following this documentation link:
https://www.digi.com/resources/documentation/digidocs/90001548/reference/bsp/r_wifi_configsettings.htm%3FTocPath%3DDigi%2520Embedded%2520Yocto|System%2520development|Customize%2520the%2520root%2520file%2520system|Configure%2520network%2520settings|_____3#Set
By doing the following:
root@ccimx6ulstarter:/# nmcli con edit wlan0
===| nmcli interactive connection editor |===
Editing existing ‘802-11-wireless’ connection: ‘wlan0’
Type ‘help’ or ‘?’ for available commands.
Type ‘describe [.]’ for detailed property description.
You may edit the following settings: connection, 802-11-wireless (wifi), 802-11-wireless-security (wifi-sec), 802-1x, ipv4, ipv6, proxy
nmcli> set wifi.ssid AndroidAP
nmcli> set wifi-sec.key-mgmt wpa-psk
nmcli> set wifi-sec.psk xxxxxxxx
nmcli> set ipv4.method manual
nmcli> set ipv4.address 192.168.104.87/16
nmcli> set ipv4.gateway 192.168.104.10
nmcli> set ipv4.dns 8.8.8.8
nmcli> save
Connection ‘wlan0’ (3153f68e-dd89-3443-ab0a-88cae2fc88fc) successfully updated.
nmcli> quit
When trying to up the wlan0 interface, I have an error saying no suitable device found:
root@ccimx6ulstarter:/# nmcli con up wlan0
Error: Connection activation failed: No suitable device found for this connection.
Below are some details provided by nmcli command:
root@ccimx6ulstarter:/# nmcli device show
GENERAL.DEVICE: eth0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 00:40:9D:98:B4:EA
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: eth0
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/1
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 10.135.9.65/21
IP4.GATEWAY: 10.135.8.1
IP4.DNS[1]: 172.28.4.55
IP4.DNS[2]: 10.197.80.11
IP4.DNS[3]: 10.197.80.12
IP4.DOMAIN[1]: sorin.com
IP6.ADDRESS[1]: fe80::240:9dff:fe98:b4ea/64
IP6.GATEWAY: –
IP6.ROUTE[1]: dst = ff00::/8, nh = ::, mt = 256
GENERAL.DEVICE: can0
GENERAL.TYPE: can
GENERAL.HWADDR: (unknown)
GENERAL.MTU: 16
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
IP4.GATEWAY: –
IP6.GATEWAY: –
GENERAL.DEVICE: sit0
GENERAL.TYPE: iptunnel
GENERAL.HWADDR: (unknown)
GENERAL.MTU: 1480
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
IP4.GATEWAY: –
IP6.GATEWAY: –
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY: –
IP6.ADDRESS[1]: ::1/128
IP6.GATEWAY: –
root@ccimx6ulstarter:/# nmcli connection show
NAME UUID TYPE DEVICE
eth0 dce47dc1-937e-360e-bcb2-a5745f1e170b 802-3-ethernet eth0
cellular c7b0df65-2c06-3b5d-82cd-5c09be5fecf6 gsm –
eth1 7296aec4-0cf2-3172-a2a8-79bb745d5a9a 802-3-ethernet –
wlan0 3153f68e-dd89-3443-ab0a-88cae2fc88fc 802-11-wireless –
I tried also to enable wlan0 interface using wpa_supplicant:
root@ccimx6ulstarter:/# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf
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
To workaround the nl80211 driver support:
root@ccimx6ulstarter:/# wpa_supplicant -B -i wlan0 -D wext -c etc/wpa_supplicant.conf
Successfully initialized wpa_supplicant
Could not read interface wlan0 flags: No such device
WEXT: Could not set interface ‘wlan0’ UP
wlan0: Failed to initialize driver interface
As shown, there is no device for wlan0
And wpa_cli can’t connect to wpa_supplicant:
root@ccimx6ulstarter:/# wpa_cli
wpa_cli v2.5
Copyright (c) 2004-2015, Jouni Malinen and contributors
This software may be distributed under the terms of the BSD license.
See README for more details.
Interactive mode
Could not connect to wpa_supplicant: (nil) - re-trying
Finally, on my generated .manifest file I can see these related Wireless packages:
- packagegroup-dey-network ccimx6ulstarter 1.0
- packagegroup-dey-wireless ccimx6ulstarter 1.0
- wireless-regdb cortexa7hf-neon 2016.06.10
- wireless-tools cortexa7hf-neon 30.pre9
- wpa-supplicant ccimx6ulstarter 2.5
- wpa-supplicant-cli ccimx6ulstarter 2.5
- wpa-supplicant-passphrase ccimx6ulstarter 2.5
Even adding this configuration to the conf/local.conf file, then building again doesn’t go through the issue:
WLAN0_MODE = “dhcp”
Do you have an idea of what’s missing to enable the wlan0 interface please ?
Regards.
YC
