CL-SOM-iMX7: Yocto Linux: User Space - Revision history

imported>Uri.mashiach at 14:37, 23 January 2019

2019-01-23T14:37:58Z

Ilya: /* WiFi */

2017-10-31T13:23:32Z

‎WiFi

Ilya: /* WiFi Initialization */

2017-04-25T09:48:29Z

‎WiFi Initialization

New page

== Overview ==
The example run-time Yocto Linux filesystem image for the CompuLab CL-SOM-iMX7 System-on-Module / Computer-on-Module is based on NXP Community Yocto Project BSP for i.MX based boards.

The [[CL-SOM-iMX7: Yocto Linux: Manual Installation: SD card|Yocto Linux manual installation on SD card]] page provides a brief introduction on how to install the run-time Yocto Linux image.

{{Note|The article uses {{cmd|cl-rootfs}} hostname. A real hostname may be different.}}

== Using Yocto Linux on CL-SOM-iMX7 ==

=== Connection and Logging In ===
Use the root username to login:

<pre>
cl-rootfs login: root
</pre>

=== Networking ===
The networking configuration in the example Yocto Linux image is almost the same as in the [[CL-SOM-iMX7: Linux: Debian#Networking |Debian Linux image]].

=== Analog Audio ===
{{:Transclusion: Debian: CL-SOM-iMX7: Analog Audio}}

=== WiFi ===
By default all wireless interfaces are soft blocked. Use the {{cmd|rfkill}} utility to block/unblock wireless interfaces and display their status.

==== WiFi Initialization ====
* The WiFi driver gets loaded automatically.
:Make sure that the WiFi driver is loaded:
<pre>
root@cl-rootfs:~# lsmod | grep wl18xx
wl18xx 84190 0
</pre>
:The WiFi driver can be loaded manually:
<pre>
root@cl-rootfs:~# modprobe wl18xx
</pre>
* Configure wpa_supplicant to connect to SSID with no key management. Put the network name into the "ssid" fields:
<pre>
root@cl-rootfs:~# cat << EOF > /etc/wpa_supplicant.conf
network={
scan_ssid=1
ssid="wireless_network_name"
key_mgmt=NONE
}
EOF
</pre>
:or with key management. Put the network name and the password into the "ssid/psk" fields:
<pre>
root@cl-rootfs:~# cat << EOF > /etc/wpa_supplicant.conf
network={
scan_ssid=1
ssid="wireless_network_name"
key_mgmt=WPA-PSK
psk="wireless_network_password"
}
EOF
</pre>
* Unblock the interface:
<pre>
root@cl-rootfs:~# rfkill unblock 1
root@cl-rootfs:~# rfkill list 1
1: phy0: wlan
Soft blocked: no
Hard blocked: no
</pre>
* Bring the wireless interface up:
<pre>
root@cl-rootfs:~# ifup wlan0
</pre>
* Obtain an IP address:
<pre>
root@cl-rootfs:~# udhcpc -i wlan0
</pre>

[[Category:Linux]]
[[Category:Yocto]]
[[Category:CL-SOM-iMX7]]
[[Category:IOT-GATE-iMX7]]
[[Category:SBC-IOT-iMX7]]

@@ Line 2: / Line 2: @@
 The example run-time Yocto Linux filesystem image for the CompuLab CL-SOM-iMX7 System-on-Module / Computer-on-Module is based on NXP Community Yocto Project BSP for i.MX based boards.
-The [[CL-SOM-iMX7: Yocto Linux: Manual Installation: SD card|Yocto Linux manual installation on SD card]] page provides a brief introduction on how to install the run-time Yocto Linux image.
+[[CL-SOM-iMX7: Yocto Linux: Creating Live-SD card|Creating Live SD-card]] article provides a brief introduction on how to create and use the live Yocto Live-SD card.
-{{Note|The article uses {{cmd|cl-rootfs}} hostname. A real hostname may be different.}}
+{{:Transclusion: CL-SOM-iMX7: Yocto Linux: User Space}}
 [[Category:Linux]]
 [[Category:Yocto]]

@@ Line 22: / Line 22: @@
 === WiFi ===
 By default all wireless interfaces are soft blocked. Use the {{cmd|rfkill}} utility to block/unblock wireless interfaces and display their status.
 ==== WiFi Initialization ====
-* The WiFi driver gets loaded automatically.
+* The {{cmd|wl18xx}} driver gets loaded automatically. Make sure that the WiFi driver is loaded.
 <pre>
 root@cl-rootfs:~# lsmod | grep wl18xx
 wl18xx                 84190  0
 </pre>
-:The WiFi driver can be loaded manually:
+<blockquote>
 <pre>
 root@cl-rootfs:~# modprobe wl18xx
 </pre>
 * Configure wpa_supplicant to connect to SSID with no key management. Put the network name into the "ssid" fields:
 <pre>