ConnectCore 6UL SBC Pro: hostapd not working in 5GHz since Digi Embedded Yocto 3.0

Embedded Devices Linux
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1

Hello,

after switching to Digi embedded yocto 3.0 I was not able to get the soft AP with hostapd working in 5GHz.
In 2.4GHz range it is working well.

The /etc/network/interfaces contains:
auto wlan1
iface wlan1 inet static
address 192.168.101.5
netmask 255.255.255.0
post-up /etc/init.d/hostapd start
pre-down /etc/init.d/hostapd stop

The /etc/hostapd_wlan1.conf is:
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
interface=wlan1
driver=nl80211

ssid=MYSSID
auth_algs=1
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_passphrase=MYPWD

IEEE 802.11ac 5GHz

hw_mode=a
channel=40
ieee80211ac=1
ieee80211n=1

country_code=DE

There is an error message in /var/volatile/log/messages
Oct 1 12:56:18 btc daemon.warn hostapd: wlan1: IEEE 802.11 Configured channel (36) not found from the channel list of current mode (2) IEEE 802.11a
Oct 1 12:56:18 btc daemon.warn hostapd: wlan1: IEEE 802.11 Hardware does not support configured channel

Thanks in advance,
Uwe

2

There was an issue with the regulatory domain in the previous release only in the cc6ul platform, this was causing the hostapd not bringing-up in 5ghz bands. It will be solved in the following release dey-3.0-r2 coming up within a month.

If you want to try it now, you should enable in the ccimx6ul_defconfig in the linux kernel the following configurations:

CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y

3

Thanks for the advise.
There are two files ccimx6ul_defconfig but none of them contains CONFIG_FW_LOADER_USER_HELPER
uwe@ubuntu:~$ find / -name ccimx6ul_defconfig -exec ls -l {} ; 2>&-
-rw-r–r-- 1 uwe uwe 8423 Sep 25 17:59 /home/uwe/pe/tmp/work-shared/ccimx6ulsbc/kernel-source/arch/arm/configs/ccimx6ul_defconfig
-rw-r–r-- 1 uwe uwe 8423 Sep 25 20:14 /home/uwe/pe/tmp/work/cortexa7t2hf-neon-mx6ul-dey-linux-gnueabi/linux-imx-headers/5.4-r0/git/arch/arm/configs/ccimx6ul_defconfig

To which file the two lines should be added?

4

Most likely the first one, but I wouldn’t try to change config files manually. Please follow the procedure here and change via menuconfig in a proper yocto way:
https://www.digi.com/resources/documentation/digidocs/embedded/dey/3.0/cc6ul/yocto_t_make-changes-devshell

5

Thanks for the advice. I did:
uwe@ubuntu:~/pe$ source dey-setup-environment
uwe@ubuntu:~/pe$ bitbake -c menuconfig virtual/kernel
Then I search for CONFIG_FW_LOADER_USER_HELPER and … FALLBACK and found it in
Defined at drivers/base/firmware_loader/Kconfig:71
Defined at drivers/base/firmware_loader/Kconfig:143

and changed in Device Drivers/Generic Driver Options/Firmware loader
*- Firmware loading facility
(imx/sdma/sdma-imx6q.bin) Build named firmware blobs into the kernel binary
(firmware) Firmware blobs root directory
[li] Enable the firmware sysfs fallback mechanism [/li][li] Force the firmware sysfs fallback mechanism when possible[/li][li] Enable compressed firmware support[/li]
But the ccimx6ul_defconfig have not been changed:
uwe@ubuntu:~$ find / -name ccimx6ul_defconfig -exec ls -l {} ; 2>&
–rw-r–r-- 1 uwe uwe 8423 Sep 25 17:59 /home/uwe/pe/tmp/work-shared/ccimx6ulsbc/kernel-source/arch/arm/configs/ccimx6ul_defconfig
-rw-r–r-- 1 uwe uwe 8423 Sep 25 20:14 /home/uwe/pe/tmp/work/cortexa7t2hf-neon-mx6ul-dey-linux-gnueabi/linux-imx-headers/5.4-r0/git/arch/arm/configs/ccimx6ul_defconfig

Then I did
uwe@ubuntu:~/pe$ bitbake -C compile virtual/kernel
which created a new zImage and Device tree
Then I did:
uwe@ubuntu:~/pe$ bitbake -c cleanall core-image-base
uwe@ubuntu:~/pe$ bitbake core-image-base
and flashed the boot and rootfs

but unfortunately with no succes:
root@ccimx6ulsbc:~# iw list
…
Frequencies:
* 5180 MHz [36] (20.0 dBm) (no IR)
* 5200 MHz [40] (20.0 dBm) (no IR)

So I think it is best to wait for the dey-3.0-r2 and hope it works with that release.

and find it in

6

yes, I agree. dey-3.0-r2 is really around the corner.

7

With new Release 3.0-r2 it is working well again!
Pls see https://https://github.com/digi-embedded/meta-digi

8

good news! Please click Checkmark next to select the answer if you are satisfied with the answer.