Function Pointers and Callbacks in C — An Odyssey
Function pointers are among the most powerful tools in C, but are a bit of a pain during the initial stages of learning. This article demonstrates the basics of function pointers, and how…
Device Drivers, Part 15: Disk on RAM — Playing with Block Drivers
This article, which is part of the series on Linux device drivers, experiments with a dummy hard disk on RAM to demonstrate how block drivers work. After a delicious lunch, theory makes the…
Building Image Processing Embedded Systems using Python, Part 2
The second part of this article discusses how to use the OpenCV library via the Python interface to perform image processing-based tasks. The previous article gave a brief overview of embedded vision and…
CodeSport (February 2012)
This month’s column is special, in honour of LFY’s 9th anniversary. We feature tips on how to prepare for programming interviews. This month, we celebrate the 9th anniversary of LFY. It’s been a…
Joy of Programming: Liskov’s Substitution Principle
LSP is a cardinal rule to follow in object-oriented designs. In this column, we’ll introduce LSP to those new to OOP (Object Oriented Programming), and discuss a couple of examples from JDK that…
Device Drivers, Part 14: A Dive Inside the Hard Disk for Understanding Partitions
This article, which is part of the series on Linux device drivers, takes you on a tour inside a hard disk. “Doesn’t it sound like a mechanical engineering subject: The design of the…
Lisp: Tears of Joy, Part 8
Lisp has been hailed as the world’s most powerful programming language. But only the top percentile of programmers use it because of its cryptic syntax and academic reputation. This is rather unfortunate, since…
Developing Apps on Qt, Part 1
This article introduces application development using the Qt GUI framework. There was a time when all desktop applications were developed from scratch. Then came the concept of code reuse. Static and shared libraries…
Working with MTD Devices
This article shows how kernel and application developers (in C) can make use of MTD in Linux. MTD (Memory Technology Devices) are NAND/NOR-based flash memory chips used for storing non-volatile data like boot…
CodeSport (January 2012)
In this month’s column, we take a short break from our discussion of compiler optimisations and feature a set of questions for computer science interviews. We have been discussing compiler optimisation over the…
June 19, 2013
anil_pugalia — Just load the usb-storage driver back. Or, just plug out & plug in the pen drive.
