EmbLogic » praveen.joshi https://www.emblogic.com/blog Embedded System and ARM Training Tue, 03 Mar 2020 13:00:06 +0000 en-US hourly 1 http://wordpress.org/?v=3.9.1 character driver https://www.emblogic.com/blog/01/character-driver-7/ https://www.emblogic.com/blog/01/character-driver-7/#comments Wed, 30 Jan 2013 12:32:44 +0000 http://emblogic.org/blog/?p=6108 proper implementation of cdev_init and cdev_add for 25 nod done.

]]> https://www.emblogic.com/blog/01/character-driver-7/feed/ 0 character driver https://www.emblogic.com/blog/01/character-driver-6/ https://www.emblogic.com/blog/01/character-driver-6/#comments Tue, 29 Jan 2013 12:26:28 +0000 http://emblogic.org/blog/?p=6018 driver register and unregister with kernel perform using register_chrdev function and alloc_chrdev_region and unregister with unregister_chrdev_region .

one issue faced:

Instead of whole program execute successfully there is no output  and after reboot it gives correct output.

]]> https://www.emblogic.com/blog/01/character-driver-6/feed/ 0 thread: assignment https://www.emblogic.com/blog/01/thread-assignment/ https://www.emblogic.com/blog/01/thread-assignment/#comments Sat, 19 Jan 2013 11:15:20 +0000 http://emblogic.org/blog/?p=5937 assignment completed using mutex and semaphore both.

]]> https://www.emblogic.com/blog/01/thread-assignment/feed/ 0 IPC Project https://www.emblogic.com/blog/01/ipc-project-2/ https://www.emblogic.com/blog/01/ipc-project-2/#comments Mon, 14 Jan 2013 05:02:44 +0000 http://emblogic.org/blog/?p=5886 project completed using message queues but facing problem in semaphore

]]> https://www.emblogic.com/blog/01/ipc-project-2/feed/ 0 memory allocation https://www.emblogic.com/blog/12/memory-allocation/ https://www.emblogic.com/blog/12/memory-allocation/#comments Sat, 01 Dec 2012 07:21:53 +0000 http://emblogic.org/blog/?p=5697 ptr=malloc(sizeof(char)*4);

if length of available characters in string is more than 4 then memory allocation to pointer cross the limit but it does not affect the output to print the string.

]]> https://www.emblogic.com/blog/12/memory-allocation/feed/ 1