Hi, In the regular RTOS, while writing the device drivers the normal practice is to associate the device with some interrupt vector and register a handler to that vector number.
But in the case of Linux, a device can be accessed only through ioctl() call. How do we register a callback for a particular device?
Is there a possibility to register a callback for both user space and kernel space drivers?
Tks Uday
I strongly recommend you to take a look at Rubini's book (Linux Device Driver - O'Reilly)
Bye, Stefano.
You need to write a device driver to do a (hardware) interrupt (in Kernel address space). same communicates with the user land application with file I/O system calls
In user land the "switch()" function provides a kind of "interrupt" based on driver activity.
-Michael
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