├── LICENSE
├── README.md
├── install.sh
├── wifi-reset.service
└── wifi-reset.sh


/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2014 Adafruit Industries
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
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 1 | WiFi Reset Service
 2 | ==================
 3 | 
 4 | Systemd service to reset (ifdown & ifup) all wireless interfaces on boot.  Greatly improves reliability of wifi adapters on the BeagleBone Black's Debian OS with 3.8 kernel.
 5 | 
 6 | Installation
 7 | ============
 8 | 
 9 | This *must* be run on a BeagleBone Black running the Debian operating system.  Get the latest image from: http://beagleboard.org/latest-images
10 | 
11 | Next make sure you've upgraded to the latest kernel available by executing once (be sure you device has internet access first):
12 | 
13 | ````
14 | cd /opt/scripts/tools/
15 | ./update_kernel.sh
16 | ````
17 | 
18 | Once the kernel has updated and the device restarted, install the service by entering the directory where this repository was cloned and executing:
19 | 
20 | ````
21 | ./install.sh
22 | ````
23 | 
24 | You should see the following response:
25 | 
26 | ````
27 | Installing wifi reset service to /opt/wifi-reset.
28 | Installing systemd service to run at boot.
29 | Enabling systemd service.
30 | ````
31 | 
32 | That's it!  On boot the service will reset (run ifdown and ifup) all wifi interfaces.
33 | 
34 | If you'd ever like to disable the service, run the command:
35 | 
36 | ````
37 | systemctl disable wifi-reset.service
38 | ````
39 | 


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/install.sh:
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1 | #!/bin/bash
2 | echo "Installing wifi reset service to /opt/wifi-reset."
3 | mkdir -p /opt/wifi-reset
4 | cp -f wifi-reset.sh /opt/wifi-reset/wifi-reset.sh
5 | echo "Installing systemd service to run at boot."
6 | cp -f wifi-reset.service /lib/systemd/system/wifi-reset.service
7 | echo "Enabling systemd service."
8 | systemctl enable wifi-reset.service > /dev/null
9 | 


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/wifi-reset.service:
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 1 | [Unit]
 2 | Description=Wireless Network Reset
 3 | 
 4 | [Service]
 5 | Type=oneshot
 6 | RemainAfterExit=true
 7 | ExecStart=/bin/bash /opt/wifi-reset/wifi-reset.sh
 8 | 
 9 | [Install]
10 | WantedBy=multi-user.target
11 | 


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/wifi-reset.sh:
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 1 | #!/bin/bash
 2 | # Bring all wifi interfaces down.
 3 | # Identify wifi interfaces as rows from standard output of iwconfig (NOT standard
 4 | # error, those are non-wifi interfaces) which start without whitespace.
 5 | sleep 30
 6 | iwconfig 2> /dev/null | grep -o '^[[:alnum:]]\+' | while read x; do ifdown $x; done
 7 | # Bring all wifi interfaces up.
 8 | sleep 30
 9 | iwconfig 2> /dev/null | grep -o '^[[:alnum:]]\+' | while read x; do ifup $x; done
10 | 


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