Whenever you want to add something to the kernel code, there are two options – either add your code to the kernel code and compile/build the entire kernel image or compile your code separately and add it to the kernel…
Tag: Communication
Components of Device Driver
To interact with the hardware, driver needs to communicate with the kernel and before that, it must notify the kernel about its presence. This is achieved by the “init” call by which the driver is registered with the kernel and…
Device Drivers : Role & Types
As briefly discussed in our previous article, device driver is a software that is used to control a hardware device and make it work. It acts as an interface between the user-application and the hardware. Any user-application reaches out to…
Device Drivers and Linux Architecture
Device driver is a computer program that controls a particular device that is connected to the system be it printers, CD-ROM readers etc. Before we go into device drivers, let us get a brief of the Linux architecture. The Linux…
Cypress Semiconductor Interview Question Bank – Part 2
Cypress Semiconductor Interview Question Bank continued from Part 1… Q : What is LFSR? Name some industry applications of it. A : LFSR stands for Linear Feedback Shift Register in which the input bit is driven by a linear function of…
Micromax Informatics Interview Question Bank – Part 2
Micromax Informatics Interview Question Bank continued from Part 1… Q : Which among BJT and MOSFET has higher gain and why? A : The current in BJT is exponentially dependent on input whereas in MOSFET, it is square law. So, trans-conductance…
Micromax Informatics Interview Question Bank – Part 1
The next stop in our journey of Interview Question Banks is that of Micromax Informatics Limited. It is an Indian consumer electronics & telecommunication firm which was established as IT software company operating in embedded services domain and later entered…
LG Electronics Interview Question Bank – Part 2
LG Electronics Interview Question Bank continued from Part 1… Q : What type of communication is used in USART? A : USART (Universal Synchronous/Asynchronous Receiver/Transmitter) uses half duplex mode of communication. Q : What do you mean by Finite Impulse…
LG Electronics Interview Question Bank – Part 1
The next stop in our journey of Interview Question Banks is that of LG Electronics. To help you in your preparation for LG Electronics and similar companies in the same domain, we have collected questions asked in their interviews from…
HCL Technologies Interview Question Bank – Part 2
HCL Technologies Interview Question Bank continued from Part 1… Q : Which of the following involves context switch – floating point exception, system call or privileged instruction? A : System call involves context switch. Q : What is Legacy Data?…