Drivers quiz

What is the primary function of drivers in a computer system?

• Control CPU temperature

• Manage battery power

• Facilitate communication

• Run software applications

What happens if a device lacks an appropriate driver installed in the operating system?

• The device functions normally without issues

• The device cannot be detected by the operating system

• The device becomes faster

• The device consumes more power

Which of the following is NOT typically a responsibility of device drivers?

• Managing system memory

• Handling input/output operations

• Controlling hardware peripherals

• Implementing security protocols

How does the Linux kernel identify and load the proper driver for a PCI device?

• By analyzing the physical connections of the device

• By executing a series of diagnostic tests on the device

• By matching the Vendor and Device IDs of the device with those specified in the driver

• By assigning a unique system path to each device

What function does the struct pci_driver serve in Linux kernel programming?

• It represents the physical layout of the PCI bus

• It defines the device IDs for driver compatibility

• It provides access to PCI configuration registers

• It initializes driver callbacks and registers the driver with the kernel

What is the purpose of the pci_read_config_* functions in Linux kernel development?

• To enable and disable PCI devices

• To access and modify PCI configuration registers

• • To allocate memory regions for device operations

• To map device memory to local pointers

What is the purpose of the request_threaded_irq() function in Linux kernel programming?

• To allocate memory for interrupt handlers

• To request the allocation of interrupt numbers dynamically

• To request an IRQ and specify a threaded handler function

• To release allocated IRQ resources

When using request_irq() to install an interrupt handler, what does the dev_id parameter represent?

• The IRQ number assigned to the device

• A unique identifier for shared interrupt lines and driver's private data area

• The name of the device owning the interrupt

• The function to be called when the IRQ occurs