vegard

Getting started with Linux kernel development

Prerequisites

The Linux kernel is written in C, so you should have at least a basic understanding of C before diving into kernel work. You don't need expert level C knowledge, since you can always pick some things up underway, but it certainly helps to know the language and to have written some userspace C programs already.

It will also help to be a Linux user. If you have never used Linux before, it's probably a good idea to download a distro and get comfortable with it before you start doing kernel work.

Lastly, knowing git is not actually required, but can really help you (since you can dig through changelogs and search for information you'll need). At a minimum you should probably be able to clone the git repository to a local directory.

kyledrake

# The blog post that started it all: https://neocities.org/blog/the-fcc-is-now-rate-limited
#
# Current known FCC address ranges:
# https://news.ycombinator.com/item?id=7716915
#
# Confirm/locate FCC IP ranges with this: http://whois.arin.net/rest/net/NET-165-135-0-0-1/pft
#
# In your nginx.conf:

location / {

walkermatt

from threading import Timer


def debounce(wait):
    """ Decorator that will postpone a functions
        execution until after wait seconds
        have elapsed since the last time it was invoked. """
    def decorator(fn):
        def debounced(*args, **kwargs):
            def call_it():

davidzchen

/*
 * Sample file using the Linux kernel coding convention.
 *
 *  https://www.kernel.org/doc/Documentation/CodingStyle
 *
 * General rules:
 *  - Indents are tabs and must be 8 spaces wide.
 *  - Each line must be at most 80 characters long.
 *  - Use C-style comments.
 *  - File names should be lower-case.c

sources.list

# path of this file: /etc/apt/sources.list

deb http://ftp.us.debian.org/debian/ jessie main contrib non-free
#deb-src http://ftp.us.debian.org/debian/ jessie main contrib non-free

deb http://ftp.us.debian.org/debian/ jessie-updates main contrib non-free
#deb-src http://ftp.us.debian.org/debian/ jessie-updates main contrib non-free

deb http://security.debian.org/ jessie/updates main contrib non-free
#deb-src http://security.debian.org/ jessie/updates main contrib non-free

jadonk

nickoe

CC="distcc gcc" CXX="distcc g++"  cmake .. -DKICAD_USE_OCC=ON -DwxWidgets_CONFIG_EXECUTABLE=$(which wx-config-gtk3) -DCMAKE_INSTALL_PREFIX=/tmp/kicad/usr/local

-DwxWidgets_CONFIG_EXECUTABLE=$(which wx-config-gtk3) -DCMAKE_INSTALL_PREFIX=/tmp/kicad/usr/local

Using ninja with multi config, see https://cmake.org/cmake/help/v3.17/generator/Ninja%20Multi-Config.html
CC="distcc gcc" CXX="distcc g++"  cmake .. -DKICAD_USE_OCC=ON -DwxWidgets_CONFIG_EXECUTABLE=$(which wx-config-gtk3) -DCMAKE_INSTALL_PREFIX=/tmp/kicad/usr/local -DCMAKE_DEFAULT_BUILD_TYPE=Release  -G"Ninja Multi-Config

-DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=gold

Use this one:

heitbaum

[238]HELLO! BOOT0 is starting!
[241]BOOT0 commit : 27369ab
[243]set pll start
[245]periph0 has been enabled
[248]set pll end
[250][pmu]: bus read error
[252]board init ok
[254]DRAM only have internal ZQ!!
[257]get_pmu_exist() = -1
[260]ddr_efuse_type: 0x0

mwelling

The above code assumes that you have the driver code for the display and font built-in.

See pull request:
https://github.com/acamilo/micropython/pull/1

It also assumes that you have loaded the happy180.bmp onto the filesystem of the module.

The bitmap was taken from here:
https://github.com/ayoy/micropython-waveshare-epd/blob/master/epd/gfx/happy180.bmp

jadonk