QUALCOMM IS HIRING : ASSOCIATE ENGINEER – DEVICE DRIVER DEVELOPMENT

Qualcomm is hiring Fresher candidates for associate engineer- device driver developer. The details of the job, requirements and other information given below:

QUALCOMM IS HIRING : ASSOCIATE ENGINEER – DEVICE DRIVER DEVELOPMENT

• Qualification : Bachelor’s degree in Engineering, Information Systems, Computer Science, or related field.
• BE/BTech/MTech in Computer Science or in Electronics preferred with proven success in a challenging academic program.
• 0-1yr experience candidates can apply
• Strong programming skills in C and Linux experience.
• Device driver or board support package (BSP) knowledge or development experience.
• Knowledge in developing the device drivers and bootloaders.
• Knowledge for ARM/DSP Processor Architecture, JTAG, Emulators.
• Excellent communication skills.
• Location: Chennai, Tamil Nadu, India

Don’t miss out, CLICK HERE (to apply before the link expires)

Interview Questions and Best Sample Answers

1. What is a Device Driver?

Answer:
A device driver is a special type of software that allows the operating system to communicate with hardware devices like keyboards, displays, or network cards.
For example, if you connect a USB drive, your OS uses a device driver to understand and control the device. In Linux, these drivers are often written in C, and loaded as kernel modules.

2. What is the role of a Board Support Package (BSP)?

Answer:
A Board Support Package is a set of software files and drivers that allow an operating system, like Linux, to run on a specific hardware board.
It includes bootloader configuration, kernel patches, and drivers specific to the board’s hardware like USB, memory, and network interfaces. BSP is critical in embedded systems development.

3. Explain the difference between User Space and Kernel Space in Linux.

Answer:

• User Space: Where all user applications run (like browsers or editors).

• Kernel Space: Where the core of the operating system runs (device drivers, memory management, etc.).

Device drivers usually run in kernel space so they can directly control hardware.
But they interact with user programs through system calls or special files in /dev.

4. What is a Bootloader?

Answer:
A bootloader is a small program that runs when a device is powered on. Its job is to load the operating system into memory.
In embedded systems, bootloaders like U-Boot are commonly used.
They also handle low-level initializations like setting up RAM or detecting the storage devices.

5. What is JTAG and why is it used?

Answer:
JTAG (Joint Test Action Group) is a hardware interface used for debugging. It allows developers to control the processor directly and debug programs, even when the software crashes.
It is very useful for low-level debugging in embedded systems, especially when the OS hasn’t started yet.

6. What is the Yocto Project?

Answer:
Yocto is a build system used to create custom Linux images for embedded systems.
It helps developers customize which software and drivers are included, and it’s often used to build BSPs.
In simple terms, it lets you create a Linux system that fits exactly to your hardware and project needs.

7. What is QSDK?

Answer:
QSDK (Qualcomm Software Development Kit) is a development framework provided by Qualcomm, mainly used for Wi-Fi and router development.
It’s based on OpenWRT/Yocto, and helps developers build firmware with Qualcomm’s hardware features.

8. What is the use of the /dev directory in Linux?

Answer:
In Linux, all hardware devices are represented as files in the /dev directory.
For example, /dev/sda may represent a hard drive, and /dev/ttyUSB0 may be a USB device.
Device drivers often create entries here so user applications can interact with hardware through these “device files.”

9. What is PRPL OS or OpenSync?

Answer:

• PRPL OS is an open-source operating system for broadband gateways (like Wi-Fi routers).

• OpenSync is a framework used in cloud-managed Wi-Fi routers.
  Having knowledge of these helps when working with networking device drivers.

10. Why do you want to work at Qualcomm?

Answer:
Qualcomm is a global leader in mobile and embedded technologies. As someone passionate about embedded systems, I want to work on real-world hardware-software problems.
Qualcomm provides the opportunity to work with advanced SoCs, Linux internals, and device drivers, which is exactly where I want to grow my career.

Tips for Freshers:

• Practice C programming, especially memory management, pointers, and structs.

• Learn basic Linux commands and how to work with files, processes, and /proc and /sys.

• Try building a simple Linux kernel module.

• Learn to use GDB, strace, and basic JTAG or emulator tools if available.

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