Let's Program the Transistors
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 image later. The first one is the earlier approach that was followed. But, considering the…
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 allocated the memory it wants. At the time of system shut down, the driver is…
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 the device driver for any interaction with the hardware device and the device driver checks…
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 virtual memory is divided into two partitions namely user space and kernel space to protect…
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 overall value of the shift register. In industry, it finds applications in encryption and decryption…
Read More “Cypress Semiconductor Interview Question Bank – Part 2” »
Taking forward our journey of Interview Question Banks, the next stop is Cypress Semiconductor. Based in United States of America, it is a semiconductor design and manufacturing company. To help you prepare for Cypress and similar companies in similar domain, let’s look at some of the interview questions asked in recent times… Q : What do…
Read More “Cypress Semiconductor Interview Question Bank – Part 1” »
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 of BJT is higher than that of MOSFET and thus BJT has higher gain than…
Read More “Micromax Informatics Interview Question Bank – Part 2” »
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 into mobile handset business. Let’s now look at some of the questions asked in its…
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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 Response filter? A : FIR filter is a type of filter whose impulse response (i.e….
Read More “LG Electronics Interview Question Bank – Part 2” »
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 various sources at one place. Let’s start with them… Q : What is setup and…
Read More “LG Electronics Interview Question Bank – Part 1” »