Hi Arjan, Thanks for your reply. I have created a standalone device and a device driver for it. scullc, to be specific, from ldd3 source code. Anyways I am sending you the source code as attachment. This is compilable standalone. You need to do an insmod as follows: insmod scullc mknod -m 666 scullc0 <major_no> 0 major_no can be obtained from /proc/devices. To test we have executed the following command cat a_text_file >/tmp/scull0 One observation is that the command runs successfully for the first time but on the second time it generates OOPS. Is it important to remove the timer explicitly when it is done with? Eagerly waiting for your response. ~Abu. Abu M. Muttalib Sr. Engineer, Embedded System, Aftek Infosys Ltd., Pune, India Office: 91-20-25449260-65 X-256 Mobile: (0)9881322820 Email: abum@xxxxxxxxx -----Original Message----- From: Arjan van de Ven [mailto:arjan@xxxxxxxxxxxxx] Sent: Saturday, February 25, 2006 6:27 PM To: Abu M. Muttalib Cc: kernelnewbies@xxxxxxxxxxxx Subject: Re: Timer manipulation in 2.6.13 On Sun, 2006-02-26 at 04:01 +0530, Abu M. Muttalib wrote: > Hi, > > I am using Linux Kernel version 2.6.13. > > In one of the processes, I am modifying the timer manually using mod_timer > function. The system generates an oops inconsistently. The log is as > follows: you forgot to attach your source code (and enough of it that it's compilable stand alone ;)
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main.c
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Makefile
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scullc.h
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