Wifi support for Pi 3 / Pi 0-W

[pficheux]

Hi all,

What's the way to build a Wifi capable image with Yocto 3.0 + meta-raspberrypi?
I got the following messages at boot time:

[ 3.399597] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 3.407398] platform regulatory.0: Direct firmware load for regulatory.db fai
led with error -2
[ 3.416231] cfg80211: failed to load regulatory.db
[ 3.468006] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio f
or chip BCM43430/1
[ 3.478060] usbcore: registered new interface driver brcmfmac
[ 3.507329] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430
-sdio.txt failed with error -2
[ 3.509080] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
Tue Feb 4 08:49:36 UTC 2020
[ 3.869115] urandom_read: 2 callbacks suppressed
[ 3.869124] random: dd: uninitialized urandom read (512 bytes read)
INIT: Entering runlevel: 5
Configuring network interfaces... Successfully initialized wpa_supplicant
rfkill: Cannot get wiphy information
Could not read interface wlan0 flags: No such device
WEXT: Could not set interface 'wlan0' UP
wlan0: Failed to initialize driver interface
ip: SIOCGIFFLAGS: No such device
...

Added the following lines to conf/local.conf

IMAGE_INSTALL_append = " iw linux-firmware-bcm43430 wpa-supplicant kernel-modules"

Then

$ bitbake core-image-minimal

I did the test on Pi 3 B/B+ and Pi 0 W.

Thx by advance

[texierp]

Hi @pficheux

It only appears with Zeus ?
Can you test with a Raspbian image ?

In any case, seems strange because I am on top-of master and it works fine on
my side:

root@raspberrypi3:~# ip -4 addr show wlan0
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel qlen 1000
    inet 192.168.1.51/24 brd 192.168.1.255 scope global wlan0
       valid_lft forever preferred_lft forever`

FYI, I use the following configuration with kas ($: kas build kas-files/kas-poky.yml:kas-files/board-raspberrypi3.yml)

• https://github.com/texierp/kas-files/blob/master/kas-poky.yml
• https://github.com/texierp/kas-files/blob/master/board-raspberrypi3.yml

Thanks

[pficheux]

I see you use core-image-base. I've tested with core-image-minimal, may be not smart enough.

[pficheux]

Works fine with core-image-base :-)

thks

[texierp]

Works fine with core-image-base :-)

Nice to hear that 👍

thks

You're welcome ;)