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test if modeswitch works

$ sudo usb_modeswitch -v 0x12d1 -p 0x1f01 -M "55534243123456780000000000000a11062000000000000100000000000000"

if yes than usually you would do this (but for me it did not work)

#edit config file
/etc/usb_modeswitch.conf

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How-to setup a simple git push deployment

These are my notes basically. At first i created this gist just as a reminder for myself. But feel free to use this for your project as a starting point. If you have questions you can find me on twitter @thomasf https://twitter.com/thomasf This is how i used it on a Debian Wheezy testing (https://www.debian.org/releases/testing/)

Discuss, ask questions, etc. here https://news.ycombinator.com/item?id=7445545

On the server (example.com)

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var germanFormatters = d3.locale({
  "decimal": ",",
  "thousands": ".",
  "grouping": [3],
  "currency": ["€", ""],
  "dateTime": "%a %b %e %X %Y",
  "date": "%d.%m.%Y",
  "time": "%H:%M:%S",
  "periods": ["AM", "PM"],
  "days": ["Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag"],

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Docker Swarm Network Overlay DNS Resolv not working (Docker 1.11.1)

I was running a docker swarm network overlay. It was using the company internal dns to resolv (10.0.0.1)

I created the network using:

docker -H :4000 network create test

 docker -H :4000 network inspect test 

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Inspired from https://blog.petrzemek.net/2014/03/23/restarting-a-python-script-within-itself/

def restart():
        import sys
        print("argv was",sys.argv)
        print("sys.executable was", sys.executable)
        print("restart now")

 import os

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Fix ignored mode of tmpfs mount on /tmp

Problem

A readonly raspberry pi with /tmp mounted in fstab as mode=1777 had mode 0755 after boot. This caused several programs such as dhcpcd not to work correctly.

The same issue is also desribed in http://superuser.com/questions/1103101/how-can-i-mount-a-tmpfs-to-tmp-via-fstab-writable-to-anyone and http://unix.stackexchange.com/questions/289377/fstab-doenst-read-mode-value

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Carambola2 - UART / Serial

Connect serial to a usb port and open it

Connect to Wifi and use ssh to connect over wifi:

ssh root@192.168.17.1 (password root)

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copy into /etc/systemd/system/autossh-ssh.service

[Unit]
Description=Reverse tunnel for ssh
After=network.target

[Service]
User=pi
Environment="AUTOSSH_GATETIME=0"
ExecStart=/usr/bin/autossh -M 0 -oExitOnForwardFailure=yes -oStrictHostKeyChecking=no -oServerAliveInterval=30 -oServerAliveCountMax=2 -R {{autossh_reverse_remote_port}}:localhost:22 -N {{autossh_remote_host}}

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Ubuntu Linux - Intel fifo irq - black screen flickering

The issue: In Ubuntu 16.04 the laptop screen and also on external screen will get black for several seconds, until it is on again. This black screen flickering happens about once a minute and is really annoying.

Checking dmesg or /var/log/messages, the following error can be found:

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *error* cpu pipe a fifo underrun

or 

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USB Ethernet adapter on Redmi 3

Tested Ethernet Adapter:

main@main:~$ lsusb
Bus 002 Device 053: ID 0b95:772b ASIX Electronics Corp. AX88772B

It is not recognized in Redmi 3