the-spyke

Enable PipeWire on Ubuntu 22.04

This guide is only for original Ubuntu out-of-the-box packages. If you have added a custom PPA like pipewire-debian, you might get into conflicts.

Ubuntu 22.04 has PipeWire partially installed and enabled as it's used by browsers (WebRTC) for recoding the screeen under Wayland. We can enable remaining parts and use PipeWire for audio and Bluetooth instead of PulseAudio.

Starting from WirePlumber version 0.4.8 automatic Bluetooth profile switching (e.g. switching from A2DP to HSP/HFP when an application needs microphone access) is supported. Jammy (22.04) repos provide exactly version 0.4.8. So, we're good.

Based on Debian Wiki, but simplified for Ubuntu 22.04.

smalinux

From 39991fa0f75e7e6302f17e4882ff2d2a18f36cae Mon Sep 17 00:00:00 2001
From: Sohaib Mohammed <[email protected]>
Date: Sat, 16 Jan 2021 06:48:31 +0200
Subject: [PATCH 1/1] mychar - hello world character device

---
 src/kernel/Mybuild  |  7 +++++++
 src/kernel/mychar.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 src/kernel/mychar.c

Rajssss

#1000 duplicated fames error fix, 
find . -name *.mp4 ! -path *.mp4.* -exec ffmpeg -i {} -s 1280x720 -movflags faststart -profile:v high -level 4.2 -max_muxing_queue_size 9999 -movflags frag_keyframe+empty_moov -max_interleave_delta 0 -vf mpdecimate -c:a copy -vsync vfr  {}.mp4 \; -exec rm {} \;


#Ilegal Seek fix adn out of queue error fix (faster encoding)
find . -name *.mp4 ! -path *.mp4.* -exec ffmpeg -i {} -s 1280x720 -movflags faststart -profile:v high -level 4.2 -max_muxing_queue_size 9999 -movflags frag_keyframe+empty_moov {}.mp4 \; -exec rm {} \;

#run from any dir, will find .mp4 in all subdir and process it
find . -name *.mp4 -exec ffmpeg -i {} -s 1280x720 -movflags faststart -profile:v high -level 4.2 {}.mp4 \; -exec rm {} \;

zigmoo

Screen Quick Reference

Wait a minute, why would anyone use 'screen', and what is it anyway?

Well, because it's both AWESOME and FUN!!

It lets you keep your own session running on all the servers you already use, and chances are, it's probably already installed and waiting for you! (since 1987!)

Basic

| Description | Command |

cnlohr

#include <string.h>
#include <stdio.h>
#include <hwcrypto/aes.h>

/* 
  For  Encryption time: 1802.40us  (9.09 MB/s) at 16kB blocks.
*/

static inline int32_t _getCycleCount(void) {
  int32_t ccount;

jjvillavicencio

cd /home/<user>/
sudo apt-get install unzip
wget https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip
unzip sdk-tools-linux-4333796.zip -d Android
rm sdk-tools-linux-4333796.zip
sudo apt-get install -y lib32z1 openjdk-8-jdk
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export PATH=$PATH:$JAVA_HOME/bin
printf "\n\nexport JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64\nexport PATH=\$PATH:\$JAVA_HOME/bin" >> ~/.bashrc
cd Android/tools/bin

robot9706

#http://www.linux-mtd.infradead.org/faq/ubi.html
#sudo apt-get install mtd-tools

#sudo -i


#UBI mount
mknod /dev/mtd0 c 90 0
modprobe nandsim first_id_byte=0x2c second_id_byte=0xac third_id_byte=0x00 fourth_id_byte=0x15
dd if=ubi.img of=/dev/mtd0 bs=2048

markuskreitzer

How to connect a Raspberry Pi to a WPA2 Enterprise Network

tags: Auburn, Auburn University, WPA2, WPA2 Enterprise

Auburn University is gracious enough to provide instructions to Ubuntu users on how to connect their hosts to the Auburn University WiFi Network.

Many Universities use WPA2 Enterprise authentication on their networks. This allow you to track WHO is connected where and have granular control over who's able to access the WiFi network.

For tinkerers and experimenters with Raspberry Pi, Particle Photon, and other embedded systems, this poses a problem because many simplier IoT devices do not support WPA2 Enterprise natively or not without some hassle.

Raspbian Jesse and earlier will display a WPA2 Enterprise network from its dropdown list, but it will be greyed out. The workaround is to manually connect to it:

ndunks

#!/bin/bash
if [ ! -d files ]; then 
	# Make the content
	echo "Generating root content.."
	mkdir files
	echo "$(date)" > files/date.txt
	echo "Another content" > files/other.txt
fi

#These config are based by Nand device that you will use!

grantstephens

Important Links:

• OpenWRT device page

Flash instruction:

The only way to flash LEDE image in TL-WR902AC v3 is to use tftp recovery mode in U-Boot:

1. Configure PC with static IP 192.168.0.66/24 and tftp server.
2. Rename "openwrt-ramips-mt76x8-tplink_tl-wr902ac-v3-squashfs-tftp-recovery.bin" to "tp_recovery.bin" and place it in tftp server directory.