Agenda. Linux Systems, Devices Design, Development, Debugging.(L3)

Track 1: Foundation Layer & Logic Engine (Modules 1 - 5)

MODULE 01: Linux & Operating System Fundamentals

Core Concepts: Linux history, kernel-space vs. user-space, Linux directory standard structure, filesystems, basic shell command operations, and system help commands.

Key Learnings: Mastery of command-line interfaces (CLI) and operating system architectures.

MODULE 02: Advanced Linux System Administration (Module 100)

Core Concepts: User and group management, permissions (chmod, chown), process management (signals, scheduling, priority), memory tracking, log analysis, and system package configurations.

Key Learnings: Managing runtime environments, virtual memory usage, and debugging system performance bottlenecks.

MODULE 03: Distributed Version Control with Git (GIT-01)

Core Concepts: Git architecture, working directory, staging area, commit logs, branch structures, merging, conflict resolution, stashing, and remote repository hosting (GitHub/GitLab).

Key Learnings: Collaborating on systems codebases using production-grade branching workflows.

MODULE 04: Core C Programming & Basic Logic Design

Core Concepts: Execution pathways, data types, variable scopes, dynamic arrays, basic operators, conditional paths, loop optimizations, and stack vs. heap allocation.

Key Learnings: Writing highly optimized, low-overhead C code suitable for microprocessors.

MODULE 05: Advanced Data Structures & Algorithms in C (Module 101 - Part A)

Core Concepts: Pointers to pointers, complex pointer arithmetic, memory mapping, custom allocation routines, structures, and unions.

Key Learnings: Direct manipulation of system memory profiles without high-level wrappers.

Track 2: Advanced Systems Logic & Modern C++ (Modules 6 - 10)

MODULE 06: High-Performance Data Structures in C (Module 101 - Part B)

Core Concepts: Singly, doubly, and circular linked lists, stacks, queues, binary search trees (BST), AVL trees, custom hash tables, and collision handling.

Key Learnings: Implementing highly-efficient data storage nodes optimized for minimal memory footprint $O(1)$ and $O(\log n)$ search behaviors.

MODULE 07: Modern C++23 Core Fundamentals (Module 102 - Part A)

Core Concepts: Namespace systems, class design, objects, constructors/destructors, inheritance, polymorphism, virtual tables (vtables), and resource management patterns.

Key Learnings: Implementing type-safe Object-Oriented systems inside Linux using modern IDEs (Eclipse on Linux).

MODULE 08: Advanced C++23 STL & Metaprogramming (Module 102 - Part B)

Core Concepts: Standard Template Library (STL) containers (vectors, maps, sets), templates, iterators, RAII, Smart Pointers (std::unique_ptr, std::shared_ptr), lambda expressions, and move semantics.

Key Learnings: Building deterministic, memory-leak-free object architectures for real-time systems.

MODULE 09: Qt Cross-Platform Application Framework

Core Concepts: Qt Core, signal-and-slot architecture, event loops, custom GUI widgets, network connectivity, and styling.

Key Learnings: Engineering highly responsive control panels and software dashboard interfaces for custom hardware devices.

MODULE 10: Advanced Bash Shell Scripting & CLI Automation (Module 111)

Core Concepts: Variables, conditional checks, loop systems, function design, text processing tools (grep, sed, awk), sub-shells, and automation daemon integration.

Key Learnings: Automating operating system tasks, automated testing loops, and kernel build script routines.

Track 3: Language-Driven Systems Automation (Modules 11 - 15)

MODULE 11: Python Shell Scripting & Systems Automation

Core Concepts: Python syntax on Linux, file handling, regular expressions, system interactions, subprocess execution, socket connections, and configuration parsers.

Key Learnings: Rapidly prototyping automation suites and device monitoring software.

MODULE 12: Tcl/Tk Programming for Automation

Core Concepts: Tcl syntax, variables, lists, string manipulation, control structures, associative arrays, Tk widgets, and event bindings.

Key Learnings: Automating hardware verification and building rapid tool dashboards for engineering teams.

MODULE 13: Perl Scripting for Systems Analysis

Core Concepts: Scalar variables, arrays, hashes, regular expression engines, file parsing, OS inter-operation, and processing textual reports.

Key Learnings: Extracting, parsing, and formatting dense device debug logs and system metrics.

MODULE 14: PHP Scripting for Web-System Integration

Core Concepts: Server-side execution, data routing, command-line execution interfaces, background runner processing, and system state databases.

Key Learnings: Constructing lightweight web management gateways for embedded systems.

MODULE 15: Advanced Linux Network Administration (Module 114)

Core Concepts: TCP/IP configuration, routing tables, subnets, DNS resolution, DHCP setups, SSH keys, network diagnostics (ping, netstat, tcpdump), and firewall management (iptables).

Key Learnings: Managing, securing, and debugging multi-node hardware communication channels.

Track 4: Cloud-Native Edge Infrastructure (Modules 16 - 20)

MODULE 16: Cloud Virtualization & Infrastructure Hosting

Core Concepts: Hypervisors, virtualization, Virtual Machines, network routing profiles, and infrastructure-as-a-service concepts.

Key Learnings: Hosting development test-benches on remote/cloud infrastructure.

MODULE 17: Professional Docker Containerization (Module 007)

Core Concepts: Docker engine, Docker files, multi-stage builds, image layers, network bridging, volume mapping, storage states, and compose files.

Key Learnings: Building reproducible, isolated development and application runtimes for modern edge nodes.

MODULE 18: Kubernetes Container Orchestration Platform

Core Concepts: Pod structures, services, deployments, replica sets, K8s networking, storage volumes, and ingress setups.

Key Learnings: Orchesrating container deployments across distributed device networks.

MODULE 19: Linux System Programming: Processes & Files (Module 103)

Core Concepts: Low-level system calls (open, read, write, close, ioctl), file descriptors, process hierarchy (fork, vfork, exec), zombie and orphan states, and resource limits.

Key Learnings: Bypassing high-level abstractions to interact directly with OS-level objects.

MODULE 20: Linux System Programming: Threads, Signals & Semaphores

Core Concepts: POSIX Threads (pthread), thread sync mechanisms (mutex, condition variables), signal handling routines, and inter-process communication using pipes, FIFO, shared memory, and message queues.

Key Learnings: Building multi-threaded, parallel applications that execute without memory races or deadlock states.

Track 5: Protocols & Network Programming (Modules 21 - 25)

MODULE 21: Linux Network Socket Programming (Module 104)

Core Concepts: BSD Socket APIs, socket lifecycle (socket, bind, listen, accept, connect), client-server designs, byte-order conversions (endianness), and raw socket configurations.

Key Learnings: Programming applications that communicate across local and wide-area networks.

MODULE 22: High-Performance Network I/O Multiplexing

Core Concepts: Non-blocking I/O architectures, system multiplexing APIs (select, poll, epoll), multithreaded socket pools, and system throughput optimizations.

Key Learnings: Handling thousands of concurrent hardware connection requests on a single server thread.

MODULE 23: Protocol Stack Implementation (TCP/IP Mechanics)

Core Concepts: Data link layer framing, IP routing logic, TCP flow control mechanisms, sliding window algorithms, congestion control, and TCP/UDP header analysis.

Key Learnings: Deconstructing network packets down to their raw hex bytes for deep-packet inspection.

MODULE 24: Remote Procedure Calls (RPC) in System Networks

Core Concepts: RPC architectures, IDL (Interface Definition Language) generation, client-server stubs, serialization, and network dispatching frameworks.

Key Learnings: Developing distributed system platforms where remote processes execute like local actions.

MODULE 25: IPv6 Network Architecture and Socket Implementation

Core Concepts: IPv6 addressing formats, stateless auto-configuration (SLAAC), IPv6 socket modifications, dual-stack networks, and migration paradigms.

Key Learnings: Designing and migrating systems software for next-generation, high-density IP infrastructures.

Track 6: Kernel Space & Custom Device Drivers (Modules 26 - 30)

MODULE 26: Linux Kernel & Character Device Driver Development

Core Concepts: User-space vs. Kernel-space, kernel execution contexts, writing kernel modules (init_module, cleanup_module), dynamic allocation of major/minor numbers, file operations struct, and character devices.

Key Learnings: Injecting custom logic directly into the Linux Kernel space.

MODULE 27: Peripheral Bus Device Drivers (GPIO & Hardware Control)

Core Concepts: Memory-mapped I/O registers, Interrupt Service Routines (ISRs), top-half and bottom-half interrupt processing, tasklets, work queues, and GPIO controllers.

Key Learnings: Controlling physical micro-pins, processing external hardware inputs, and writing responsive kernel-space handlers.

MODULE 28: Platform Device Drivers & Device Trees (DTS/DTB) (Module 019)

Core Concepts: The Linux device driver model, platform bus APIs, device tree properties, dynamic node parsing, binding matching mechanisms, probe/remove structures, and SysFS controls.

Key Learnings: Registering custom board designs and accessories within the official Linux bus architectures.

MODULE 29: Serial Bus Protocols & SPI Device Drivers (Module 016)

Core Concepts: SPI physical bus lines (MOSI, MISO, SCLK, CS), master-slave controller designs, spi_device/spi_driver API structures, transfer queues, and SPI subsystem interactions.

Key Learnings: Writing drivers that manage inter-chip high-speed serial communications.

MODULE 30: Block Device Drivers & Storage Architecture (Module 108)

Core Concepts: Block subsystem internals, request structures, request queues, bios structures, sector mappings, RAM disks, and block driver setups.

Key Learnings: Developing block-level storage solutions (like SD/MMC card drivers) integrated with Virtual Filesystems.

Track 7: Embedded Linux ARM Board Bring-up (Bonus Specialization Modules)

MODULE 31: Embedded Hardware Platforms (ARM Cortex Architecture)

Core Concepts: ARM register systems, memory architectures, processor states, peripheral interfaces, power control systems, and board-level components.

Key Learnings: Deciphering hardware data-sheets and registers for real system-programming.

MODULE 32: Bootloaders & U-Boot Configurations

Core Concepts: System boot sequences, Primary Boot Loader (PBL), Secondary Boot Loader (SPL), U-Boot commands, environment variables, and memory space management.

Key Learnings: Configuring and compiling custom bootloaders to initiate device startup sequences.

MODULE 33: TFTP/NFS Embedded Kernel & RootFS Deployments

Core Concepts: Setting up host TFTP servers for ARM Kernel downloads, configuring Network File Systems (NFS), and establishing runtime physical developer setups.

Key Learnings: Booting and mounting customized, dynamic filesystems directly from your PC to an ARM board without flashing.

Training Methodology & The "Behavioral Model"