Gumstix Overo wifi continuously drops

Question

I am using Gumstix overo and from the last few days I can not work correctly with Wifi.

I followed the instructions of Gumstix Overo Wifi and Overo Wifi to set the correct parameters in / etc / network / interfaces and / etc / wpa_supplicant.conf.

/ etc / network / interfaces:

# 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:

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
    }

After setting up and running, ifdown wlan0 && ifup wlan0I constantly get this message:

[1176.528778] cfg80211: call CRDA to update the global regulatory domain
[2155.687255] cfg80211: call CRDA to update the global regulatory domain
[1175.293609] cfg80211: call CRDA to update the global regulatory domain

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,mt9v032,videodev

yocto gumstix, https://github.com/gumstix/Gumstix-YoctoProject-Repo

, - , .

Answer 1

Wi-Fi . , ifconfig, iwconfig - NetworkManager.

- :

SD- .

systemd

, systemd microSD.

• rootfs script:

  $sudoedit /media/rootfs/etc/systemd/system/network-wireless@.service

• :

  Description=Wireless network connectivity (%i)
Wants=network.target
Before=network.target
BindsTo=sys-subsystem-net-devices-%i.device
After=sys-subsystem-net-devices-%i.device

  
  [Service]
Type=oneshot
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=1min
Restart=on-failure

  
  ExecStop=/sbin/ifconfig %i down

  
  [Install]
WantedBy=multi-user.target

.

• , (systemctl) . :

  ~ multi-user.target.wants :

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

  ~ :

  Overo Series COMs

  $sudo ln -s ../network-wireless@.service [e-mail]

, wpa_supplicant:

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

, :

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

.

microSD.

SSH

1) ip $ssh [e-mail]
2) IP- $ssh [e-mail]