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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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#!/usr/bin/env ruby

# List all keys stored in memcache. 
# Credit to Graham King at http://www.darkcoding.net/software/memcached-list-all-keys/ for the original article on how to get the data from memcache in the first place.

require 'net/telnet'

headings = %w(id expires bytes cache_key)
rows = []

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Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

Single file conversion example

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user web;

# One worker process per CPU core.
worker_processes 8;

# Also set
# /etc/security/limits.conf
#   web soft nofile 65535
#   web hard nofile 65535
# /etc/default/nginx

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#!/usr/bin/swift

import Foundation

let path = URL(fileURLWithPath: NSString(string: "~/Library/Application Support/.ffuserdata").expandingTildeInPath)
let data = try! NSData(contentsOf: path) as Data
let dictionary = try! NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(data) as! NSDictionary
let mutableDictionary = dictionary.mutableCopy() as! NSMutableDictionary

for (key, value) in mutableDictionary {

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Adobe Crash Fix XLNC

Instructions

1. Install needed adobe apps from adobe creative cloud.

2. Open Terminal.

3. Copy-paste the below command to your terminal and run it (enter password if asked).

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Lily58 Custom Split Keyboard Organization

Parts via Aliexpress

According to https://keycapsss.com/keyboard-parts/pcb/71/lily58-pro-split-keyboard-pcb?number=KC10040_PARTS

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Notes to make IR shield (made by LinkSprite) work in Raspberry Pi 3 (bought from Amazon [1]). 
The vendor has some documentation [2] but that is not complete and sufficient for Raspbian Stretch. 
Following are the changes that I made to make it work.

$ sudo apt-get update
$ sudo apt-get install lirc

# Add the following lines to /etc/modules file
lirc_dev
lirc_rpi gpio_in_pin=18 gpio_out_pin=17

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require 'spec_helper'

describe 'GraphQL acceptance' do
  describe 'allLinks' do
    it 'returns all links' do
      link1 = create :link, description: 'first'
      link2 = create :link, description: 'second'

      query = %(
        {

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How to Build a GCC Cross-Compiler for the Raspberry Pi.

$ sudo apt-get install g++ make gawk
$ chmod +x ./build_cross_gcc
$ sudo ./build_cross_gcc

Source: http://blog.felipe.rs/2015/01/20/how-to-build-a-gcc-cross-compiler-for-the-raspberrypi/