How CPU communicates with external devices in embededd systems OR Difference between Memory mapped I/O and I/O mapped I/O ?
There are two different approaches such as Memory-mapped I/O (MMIO) and I/O-mapped I/O (IOMIO) to …
There are two different approaches such as Memory-mapped I/O (MMIO) and I/O-mapped I/O (IOMIO) to …
In C, a callback function is basically a function or executable code that is passed as an argument …
1.What is output of below code in C ? Explain in Detail ? Code Snippet:- #include<stdio.h> #in…
Context switching is a mechanism, that involves the switching from one runnable task to another , i…
Debugging Device Tree issues may be bit challenging but essential for proper hardware configuration.…
Device Tree Source (DTS) is a source file which is present in human-readable format that describ…
Device Tree is used by the Linux kernel to configure and initialize hardware in embedded systems du…
Device Tree (also known as Device Tree Blob, DTB) in Linux is significantly improves the portabili…
In Linux, a "task struct" , also known as a process descriptor , represents a running proc…
The HZ value refers to the frequency at which the kernel's internal timer interrupt occurs . He…
There are certain guidelines and restrictions that need to be followed to ensure proper and efficien…
Linux handles a longish task (while handling the interrupt routine) by splitting the interrupt han…
The below functions are used to install and uninstall the interrupt handler in Linux kernel which ar…
The request_irq() is suitable for handling simple and quick interrupt processing tasks and request_…
The terms "top half" and "bottom half" are the two distinct parts of handling t…
Vector table is a data structure used by the processor to handle exceptions and interrupts . It is…
Exception causes the CPU core enter into a specific mode. In addition, by altering the cpsr also CP…
An exception is a situation that needs to stop the normal sequential execution of instructions whi…
Interrupt is a asynchronous signal (event) which generates from a hardware, informs to processor to …
What is the Linux kernel? The Linux kernel is the core of the Linux operating system. It is re…