friends,

any one dealing with interrupt handelers in linux ? i've been trying out a keyboard interrupt handeler ! Kindly share your practical experiences with interrupt handelers in linux !

Kernel module has to be be linked to kernel library, so how it a standard project run as kernel module.

thnks

What's to share? You write a handler, it grabs the interrupt, you process it appropriately in an interrupt service routine, you keep on going.

error: macro "INIT_WORK" passed 3 arguments, but takes just 2
/home/anisha/Desktop/t2.c: In function ‘irq_handler’:
/home/anisha/Desktop/t2.c:62: error: ‘INIT_WORK’ undeclared (first use in this function)

I got this error message while compiling a user defined keyboard interrupt handler

kernel: 2.6.22.5-31-default i686

kindly help !

Read the error message -- pass 2 arguments, not 3. I would be more specific, but you haven't posted the code that created the error message.

just now I found out the INIT_WORK macro's syntax has changed since kernel 2.6.22.5-31, it now takes just 2 arguements ! Now what about the original data storage so that the work function could retrieve it.

friends,
do you know something regarding function inb(). I read the following in man but couldnt make it out !!

-------------------------------------
This family of functions is used to do low-level port input and output. The out* functions do port output, the in* functions do
port input; the b-suffix functions are byte-width and the w-suffix functions word-width; the _p-suffix functions pause until the
I/O completes.

They are primarily designed for internal kernel use, but can be used from user space.

You compile with -O or -O2 or similar. The functions are defined as inline macros, and will not be substituted in without opti‐
mization enabled, causing unresolved references at link time.

You use ioperm(2) or alternatively iopl(2) to tell the kernel to allow the user space application to access the I/O ports in ques‐
tion. Failure to do this will cause the application to receive a segmentation fault.
-------------------------------------

thanks !