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@austinmarton
austinmarton / sendRawEth.c
Created February 27, 2012 08:40
Send a raw Ethernet frame in Linux
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <stdio.h>
@austinmarton
austinmarton / recvRawEth.c
Created June 3, 2012 07:55
Receive raw Ethernet frames in Linux
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
#include <arpa/inet.h>
#include <linux/if_packet.h>
#include <linux/ip.h>
// Written by Nick Gammon
// February 2011
/**
* Send arbitrary number of bits at whatever clock rate (tested at 500 KHZ and 500 HZ).
* This script will capture the SPI bytes, when a '\n' is recieved it will then output
* the captured byte stream via the serial.
*/
#include <SPI.h>
@chrismeyersfsu
chrismeyersfsu / spidev_test.c
Created August 10, 2012 20:55
Raspberry Pi SPI Master
/*
* SPI testing utility (using spidev driver)
*
* Copyright (c) 2007 MontaVista Software, Inc.
* Copyright (c) 2007 Anton Vorontsov <avorontsov@ru.mvista.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License.
*
@companje
companje / Image over Socket.IO.js
Created September 3, 2014 17:46
Image over Socket.IO
//NodeJS
var express = require('express');
var app = express();
var http = require('http').Server(app);
var fs = require('fs');
var io = require('socket.io')(http);
app.use(express.static(__dirname, '/'));
io.on('connection', function(socket){
@rain1024
rain1024 / tut.md
Last active July 26, 2024 01:49
Install pdflatex ubuntu

PdfLatex is a tool that converts Latex sources into PDF. This is specifically very important for researchers, as they use it to publish their findings. It could be installed very easily using Linux terminal, though this seems an annoying task on Windows. Installation commands are given below.

  • Install the TexLive base
sudo apt-get install texlive-latex-base
  • Also install the recommended and extra fonts to avoid running into the error [1], when trying to use pdflatex on latex files with more fonts.
@robodhruv
robodhruv / modelsim_installation.md
Last active July 21, 2024 23:06
Installing ModelSim on Ubuntu

ModelSim Installation issues

Ubuntu 14.xx and above

Ignore this if you have not encountered any issue with the installation and running of ModelSim and Quartus on your system. You are very lucky. (Just Kidding! You have surely had this issue, only sorted.)

Hence assuming you have been following the procedure given in this guide. Most certainly, Quartus will install jsut fine, and so will ModelSim. The issue is in launching due to inappropriate linking etc.

Stage 1

This is the simplest error you would encounter. Navigate to the modelsim_ase folder and run:

@betweenbrain
betweenbrain / recurse.js
Created February 1, 2017 20:37
Recursively parse JSON object
var str = '';
function traverse(o) {
if (typeof o == "object") {
for (var key in o) {
str += '<dt>' + key + '</dt>';
traverse(o[key])
}
} else {
str += '<dd>' + o + '</dd>';
@narate
narate / create-hotspot.md
Last active July 23, 2024 17:57
Create Wi-Fi Hotspot on Linux using nmcli

Create a Wi-Fi hotspot on Linux using nmcli

Original post : https://unix.stackexchange.com/a/310699

nmcli con add type wifi ifname wlan0 con-name Hostspot autoconnect yes ssid Hostspot
nmcli con modify Hostspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify Hostspot wifi-sec.key-mgmt wpa-psk
nmcli con modify Hostspot wifi-sec.psk "veryveryhardpassword1234"
@rizky
rizky / gui-docker.md
Last active July 26, 2020 07:18
Running Graphical applications in Docker for Mac

Setup

Docker for Mac lets you run any Linux executable in an isolated process on Mac. A graphical app is just another process, that needs access to the X11 socket of the system, or an X11 server. You can run X11 applications on a Mac using an open source project called Xquartz. The steps to expose XQuartz to a Linux process running in Docker are simple:

  1. install XQuartz from xquartz.org. Note: you need to install XQuartz version 2.7.10, version 2.7.11 does not work with Docker for Mac. Then you have 3 choices:
  2. Proxy the XQuartz socket to port 6000 or
  3. Tell Xquartz to accept network calls. This is not very secure.
  4. Tell Xquartz to accept network calls and require authentication, setup X11 security using xauth, and mount ~/.Xauthority in the container.