EmbLogic » zahid 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/07/character-driver-9/ https://www.emblogic.com/blog/07/character-driver-9/#comments Wed, 03 Jul 2013 12:54:03 +0000 http://www.emblogic.com/blog/?p=6634 Continue reading →]]> Rlog file for character driver
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RCS file: lkm2.c,v
Working file: lkm2.c
head: 1.5
branch:
locks: strict
root: 1.5
access list:
symbolic names:
keyword substitution: kv
total revisions: 5; selected revisions: 5
description:
Base file for character device driver.
It register Device Driver creats major no.
Also it unregister the driver.
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revision 1.5 locked by: root;
date: 2013/07/03 12:44:29; author: zahid; state: Exp; lines: +6 -3
Introduce fucntionality of command line argumets.
Using module_param().
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revision 1.4
date: 2013/07/03 11:55:20; author: zahid; state: Exp; lines: +8 -1
We initialize all cdev members like owners, ops, dev, etc.
Initialize successfully.
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revision 1.3
date: 2013/07/03 11:31:44; author: zahid; state: Exp; lines: +23 -2
We initialize the cdev using cdev_init().
Then we add this device using cdev_add().
Now our device is live and its operation can be called by the kernel.
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revision 1.2
date: 2013/07/03 10:49:06; author: zahid; state: Exp; lines: +20 -5
Now program allocate memory to struct sculldev using kmalloc().
Then we set the allocted memory to ” using memset.
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revision 1.1
date: 2013/07/03 10:00:00; author: zahid; state: Exp;
Initial revision
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]]> https://www.emblogic.com/blog/07/character-driver-9/feed/ 0 IPC using Multithread https://www.emblogic.com/blog/06/ipc-using-multithread/ https://www.emblogic.com/blog/06/ipc-using-multithread/#comments Fri, 28 Jun 2013 11:38:49 +0000 http://www.emblogic.com/blog/?p=6631 Successfully run IPC project using multi thread
server can process 1200 req. clients.

]]> https://www.emblogic.com/blog/06/ipc-using-multithread/feed/ 0 IPC https://www.emblogic.com/blog/06/ipc-6/ https://www.emblogic.com/blog/06/ipc-6/#comments Sat, 01 Jun 2013 11:50:52 +0000 http://www.emblogic.com/blog/?p=6513 Successfully done IPC using Pipes
for Multiple req. client and multiple processing client.
I check for 100 clients running properly.

]]> https://www.emblogic.com/blog/06/ipc-6/feed/ 0 IPC https://www.emblogic.com/blog/06/ipc-5/ https://www.emblogic.com/blog/06/ipc-5/#comments Sat, 01 Jun 2013 05:42:00 +0000 http://www.emblogic.com/blog/?p=6511 Successfully run IPC using pipes.
For one req. cllient one prosessing client.
Now trying for multiple req. client.

]]> https://www.emblogic.com/blog/06/ipc-5/feed/ 0 MDC https://www.emblogic.com/blog/05/mdc-5/ https://www.emblogic.com/blog/05/mdc-5/#comments Wed, 01 May 2013 10:35:27 +0000 http://www.emblogic.com/blog/?p=6385 Completed Compression/ Decompression for 4 bit code length.
Running properly.
It creats a compress file and a key file(contaning masterarray).
For decompression it uses compress file and key file.
trying for any code length.

]]> https://www.emblogic.com/blog/05/mdc-5/feed/ 0 Low level file IO https://www.emblogic.com/blog/04/low-level-file-io/ https://www.emblogic.com/blog/04/low-level-file-io/#comments Tue, 23 Apr 2013 05:25:03 +0000 http://www.emblogic.com/blog/?p=6383 How can we access directory thorough a c program?
Question is to write a program to find all the files with ext ‘.txt’ in a current directory.

so, How can we access a directory? or any hint …

]]> https://www.emblogic.com/blog/04/low-level-file-io/feed/ 2