ghedo

/*
 * Simple sound playback using ALSA API and libasound.
 *
 * Compile:
 * $ cc -o play sound_playback.c -lasound
 * 
 * Usage:
 * $ ./play <sample_rate> <channels> <seconds> < <file>
 * 
 * Examples:

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

wandernauta

#!/usr/bin/env bash

#
# This is sp, the command-line Spotify controller. It talks to a running
# instance of the Spotify Linux client over dbus, providing an interface not
# unlike mpc.
#
# Put differently, it allows you to control Spotify without leaving the comfort
# of your command line, and without a custom client or Premium subscription.
#

evanscottgray

docker ps | awk {' print $1 '} | tail -n+2 > tmp.txt; for line in $(cat tmp.txt); do docker kill $line; done; rm tmp.txt

jonsuh

# ----------------------------------
# Colors
# ----------------------------------
NOCOLOR='\033[0m'
RED='\033[0;31m'
GREEN='\033[0;32m'
ORANGE='\033[0;33m'
BLUE='\033[0;34m'
PURPLE='\033[0;35m'
CYAN='\033[0;36m'

kylemanna

README

The example below creates a TCP server listening on a stream (i.e. SOCK_STREAM) socket. A similar approach can be followed to create a UDP server on a datagram (i.e. SOCK_DGRAM) socket. See man systemd.socket for details.

An example server

Create an simple echo server at ~/tmp/foo/serve.py.

alfredkrohmer

Physical layer

The dongle itself is sending out data using 802.11a (5 GHz WiFi) with OFDM and 6 Mbit/s data rate:

Radiotap Header v0, Length 38
    Header revision: 0
    Header pad: 0
    Header length: 38
    Present flags

mjuric

Utilities you'll care about

All these are already installed on epyc.

• kafkacat (conda install -c conda-forge kafkacat)

• kt (grab it from https://github.com/fgeller/kt/releases)

• kafka-* (come with kafka, if you yum install if from Confluent's repo, or via Docker if you're so inclined). Warning -- JVM based and dreadfully slow.

• jq (conda install -c conda-forge jq or use your favorite package manager)

yisonPylkita

#pragma once
#include <cstdint>

#if !defined(__ORDER_LITTLE_ENDIAN__)
#error "Only little endian systems are supported"
#endif

// All of these functions are constexpr (c++11 compatibile and above)
// Generated code - https://godbolt.org/z/Tz7Wvg
namespace byte_converter {

ayufan

100% brightness - 7W
40% brightness - 4.8W
0% brightness - 3.5W
0% brightness, all cores - 8.5W
100% brightness, all cores - 12.2W
40% brightness, youtube 480p, vp9 - 7.3W
40% brightness, youtube 720p, drop frames, vp9 - 10W
40% brightness, youtube 1080p, choppy, vp9 - 10W
40% brightness, youtube 480p, avc1 - 6.7W
40% brightness, youtube 720p, avc1 - 7W