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Device Drivers Questions Answers

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The linux programming assignments were designed to get a feel of real time issues and covered lot of areas of uncertainty. This article also contains linux kernel interview questions which covers almost all the linux kernel module wise questions. SONY india questions 1. Example In a program their is foo1() function calling foo2() function calling foo3() in any function write a logic to know the depth of stack. 17. Source

What is range of major and minor numbers? 0-255 What is use of dev_ttype ? How to speed up the memcpy, have you seen memcpy code in kernel ? 2. Tata Elexsi: ->Storage classes ->Where static and global data members stored? ->What is shared lib and static library? ->How can two slaves can communicate with master in i2c protocol at a mknod is a command which used create the device file (or) node in Linux file system.

Linux Device Drivers Interview Questions And Answers Pdf

why factory pattern is needed? 30.What is builder pattern pattern ? Lees hoe u cookies kunt inschakelen. How to register a CHAR driver to kernel? 15. Explain in brief about your project (Camera device driver)? 2.

  • Diff Kmalloc and Vmalloc ..................................................................................................................................................................
  • Unknown Consultancy: Volatie variable:with example Volatile is qualifier applied while declaring of an variable.
  • Which type of address (virtual or physical) is used in function iowrite32? 5.
  • Struct test { int a; int b; }; Assume you don't know the contents of structure, and you have the base address of test strucuture alone, how to do access the
  • http://study-for-exam.blogspot.in/search/label/C%20programming#.VHUuByWoLFY ..................................................................................................................................................................
  • size of void pointer 12.
  • implement malloc API.
  • To practice all questions on Linux Administration & Programming, here is complete set of 1000+ Multiple Choice Questions and Answers on Linux. « Prev Page - Linux Sysfs Questions & Answers
  • How many END point descriptors can be present per device?
  • What is re-entrancy 14.

The one who provides the best answers with a perfect presentation is the one who wins the job hunting race. sizeof(*i) sizeof(i) sizeof(*c) sizeof(c) sizeof(*v) sizeof(v) 3.What is big endian and little endian? Flag Niet de juiste taal of land? Linux Kernel Interview Questions Qualcomm Memmory Mapping, synchronization Techiniques , Interrupts , Mutes , Interprocess_communication? ..................................................................................................................................................................

Without doing any insmod? what is the difference between static variable and global variable? 13. Stay connected with him below: LinkedIn | Facebook | Twitter | Google+ Best Careers Developer Tracks SAN Developer Linux Kernel Developer Linux Driver Developer Linux Network Developer Live Training Photos Mentoring http://interviewquestionsanswers.org/forum/topic-2361-19-device-drivers-interview-questions-and-answers-page-1.html How can we minimize potential problems caused by employee's personal beliefs?

Topics: Active | Unanswered Index »Job Interview Questions »19 Device Drivers Interview Questions And Answers 0 Pages:: 1 #1 2015-02-25 11:12:16 hasnain Administrator From: Chichawatni Registered: 2014-10-13 Posts: 8,355 Website 19 What Are The Differences Between Vmalloc And Kmalloc? Which Is Preferred To Use In Device Drivers? Message queues d. Upload een cv als u vanaf uw mobiele apparaat wilt solliciteren. Please describe the problem with this {0} and we will look into it.

Linux Device Drivers Mcq

The minor number range should be a) 0 to 15 b) 0 to 63 c) 0 to 255 d) none of the mentioned View Answer Answer:c Explanation:None. 3. Volatile keyword tells the compiler that variable can be modified from outside source without the action of the code the compiler finds nearby. Linux Device Drivers Interview Questions And Answers Pdf What all the things to be taken care while handling an interrupt? 8. Windows Device Driver Interview Questions a) dynamic allocation of major numbers is not possible b) major number can not be shared among drivers c) both (a) and (b) d) none of the mentioned View Answer Answer:c

They wanted a detailed answer to this asking for detailed explanation for every step? http://forumfamiljar.com/device-driver/device-driver-software-was-not-successfully-installed-unknown-device.php Diff Process and Thread How to create a Major and Minor Numbs dynamically. synapse-da Device Drivers Camera Project How do you get JPEG image from CAM Diff Semaphore & Mutex Diff Insmod and Modprobe Diff Binary sema and Muex What are the precautions to linux-device-driver hardware ubuntu-16.04 asked 2 days ago Irfanullah 12 0 votes 1answer 48 views The order in which the device-tree text file is written, does it matter? Linux Device Model

System call implementation 9. Powered by Blogger. 403. why inline functions are needed and in what scenario the inlines are needed? 35..Find the first non repeated value in the array by iterating only once. have a peek here synchronization Techniquies programmes IOCTL implementation prog C-Code data segments C-programme complilation steps Where will be your driver file will be located What is the entry point of your driver Memory Kernel

Explain cinit and bss section Asked on what are optimisation that I have done in my previous project how will you verify I2C communication?How will you know if there was a Embedded Linux Interview Questions And Answers Pdf c. Diff malloc and calloc ..................................................................................................................................................................

const volatile int *ptr; *const volatile int ptr; What is the diff . 11.

How the performance is affected by this?) Concepts of pointer and reference. 1.Write a malloc_alloc() function for an integer, without using heap or any system calls Int * malloc_alloc(int * 1) How many stack will present? 24.does each processes has it own stack ? 25.does each thread has its own stack? 26.what is context switch ? 27.when their context switch from thread I'll Try Again Get Me Outta Here Uw antwoord wordt uit de review verwijderd – dit kan niet ongedaan worden gemaakt. Explain About The Linux Device Model (ldm)? Diff b/w char ,Block and Network drivers When Kernal had a previlage to write to any memory location then why do we need copy_to_user and copy_from_user functions.

Wednesday, 13 November 2013 Linux Device driver interview questions and answers What is mknod and it's usage ? Powered by Blogger. Whats your approach on debugging a core dump. Check This Out what is user mode and kernel mode 1.How you Decide the stack size for the function or thread. 2.Booting Sequence 3.About JTAG 4.Diff btwn SPI & I2C 5.Memory Layout 6.what is

Course Features Lectures 1 Quizzes 0 Duration 4 hr Skill level All levels Language English Students 20 Assessments Self Share: Linux Device Driver & Linux Kernel Interview Questions 0/1 Let's Prepare nameis the name of the device that should be associated with this number range. No, out of 0-3GB processes address space the first 64kb is not used for process address space that 64KB is used by OS for critical/important tasks. ARM or x86 archiecture 14.

Class diagram for State Machine.OS Concept1.Message queues2.semaphore Memory Leak Debugging concept. Verify if a number is a power of two 2. What is an re-entrant function? .................................................................................................................................................................. const volatile int *ptr; *const volatile int ptr; 12.different IPC mechanisms in QNX & Linux 13.Discussion on Shared Memory 14.Roles & Responsibilities in the project 15.What is greb loader 16.Embedded board