GUMSTIX OVERO WIFI has declined

# Wireless interfaces 
auto wlan0
iface wlan0 inet dhcp
 pre-up wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf -B
 down killall -q wpa_supplicant

ctrl_interface=/var/run/wpa_supplicant
 ctrl_interface_group=0
 update_config=1
 eapol_version=1 
 ap_scan=1
 fast_reauth=1

 network={
 ssid="xxxxxx"
 proto=WPA
 key_mgmt=WPA-PSK 
 pairwise=CCMP TKIP
 group=CCMP TKIP
 scan_ssid=1
 psk="xxxxx"
 priority=10
 }

lo no wireless extensions.

wlan0 IEEE 802.11bg ESSID:off/any 
 Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated 
 Retry long limit:7 RTS thr:off Fragment thr:off
 Encryption key:off
 Power Management:on

Module Size Used by
libertas_sdio 16484 0 
libertas 99993 1 libertas_sdio
firmware_class 6920 2 libertas_sdio,libertas
ipv6 252525 22 
cfg80211 172644 1 libertas
rfkill 17524 3 cfg80211
lib80211 5138 1 libertas
mt9v032 7169 1 
 omap3_isp 132270 0 
v4l2_common 8681 2 o map3_isp,mt9v032
ads7846 10528 0 
videodev 98880 3 omap3_isp,mt9v032,v4l2_common
media 12853 3 omap3_isp,mt9v032,videodev

$sudoedit /media/rootfs/etc/wpa_supplicant.conf

network={
 ssid ="Your Network's SSID"
 psk="Your WPA2 Passkey"
}

I am using Gumstix overo, and I can’t use Wifi normally in the past many days.

I follow the instructions in Gumstix Overo Wifi and Overo Wifi In /etc/network/interfaces and /etc/wpa_sup The correct parameters are set in plicant.conf.

/etc/network/interfaces file:

# Wireless interfaces
auto wlan0
iface wlan0 inet dhcp
 pre-up wpa_supplicant -Dwext -iwlan0 -c/etc/wpa_supplicant.conf -B
 down killall -q wpa_supplicant

wpa_supplicant.conf:< /p>

ctrl_interface=/var/run/wpa_supplicant
 ctrl_interface_group=0
 update_config=1
 eapol_version=1
 ap_scan=1< br /> fast_reauth=1

 network={
 ssid="xxxxxx"
 proto=WPA
 key_mgmt=WPA-PSK
 pairwise=CCMP TKIP 
 group=CCMP TKIP
 scan_ssid=1
 psk="xxxxx"
 priority=10
 }

Set up and run ifdown wlan0&& ifup wlan0 I often receive this message:

[1176.528778] cfg80211: Call CRDA to update the world regulatory field
[2155.687255] cfg80211: Call CRDA to update the world regulatory field
[1175.293609] cfg80211: Call CRDA to update the world regulatory field

My iwconfig:

lo no wireless extensions.

wlan0 IEEE 802.11bg ESSID:off/any 
 Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated 
 Retry long limit:7 RTS thr:off Fragment thr:off
 Encryption key:off
 Power Management:on

My lsmod looks like this:

root @ overo: ~#lsmod

Module Size Used by
libertas_sdio 16484 0 
libertas 99993 1 libertas_sdio
firmware_class 6920 2 libertas_sdio,libertas
ipv6 252525 22 
cfg80211 172644 1 libertas
rfkill 17524 3 cfg80211
lib80211 5138 1 libertas
mt9v032 7169 1 
omap3_isp 132270 0 
v4l2_common 8681 2 omap3_isp,mt9v032
 ads7846 10528 0 
videodev 98880 3 omap3_isp,mt9v032,v4l2_common
media 12853 3 omap3_isp,m t9v032,videodev

I am using gumstix’s Yocto project cloned from https://github.com/gumstix/Gumstix-YoctoProject-Repo

If I can get it in the wrong place Any input, that would be very helpful.

The reason for wifi dropping is the network administrator. By disabling it, we can run ifconfig, iwconfig without Any interference from NetworkManager.

Or another solution is that this is very successful:

After creating the SD card with the correct image, do not unmount the partition.< /p>

Install custom systemd service

To call up the wireless interface at startup, you need to create and install a custom system service on the microSD card.

in In the rootfs partition, create a new service script:

$sudoedit /media/rootfs/etc/systemd/system/[email protected]
>Copy and paste the following content into the file :

Description=Wireless network connection (%i)
Want=network.target
Before=network.target
BindsTo=SYS-subsystem net device-%i.device
After = SYS-Subsystem Net Equipment-%i.device

[Service]
TYPE=Single stable
RemainAfterExit = YES

ExecStart = / sbin / ifconfig%i up
ExecStart = /usr/sbin / wpa_supplicant -B -i%i -c /etc/wpa_supplicant.conf
ExecStart = / sbin / dhclient%i
RestartSec = 1 minute
Restart = connection failure

ExecStop = / sbin / ifconfig%i down

[Install]
WantedBy = multi-user.target

Save This file.

>Because we edit these files on the development machine, the regular systemd method of enabling the service (systemctl) will not work Function. To enable our new service:

~ Switch to the multi-user.target.wants directory on the root file system:

$cd /media/rootfs/etc/systemd /system/multi-user.target.wants/

~Create a symbolic link to enable the service:

Overo series COM

$sudo ln -s ../[email protected] [email protected]

Finally, edit the wpa_supplicant configuration file:

$sudoedit /media/rootfs /etc/wpa_supplicant.conf

Change it to the following:

network={
 ssid="Your Network's SSID"< br /> psk="Your WPA2 Passkey"
}

Save the file.

Unmount the partition on the microSD card.

SSH into your System

1) If you don’t know ip $ssh [email protected] 2) If you know the IP address $ssh [email protected]