Re: How to write a device driver in such a fashion .????

[Misbah khan <misbah_khan@engineer.com>]

using mmap() in application to access the h/w is only possible if  the device
memory is mapped in the kernel virtual memory how come we directly map to
the physical memory to virtual from user space ??? 

----Misbah 

Misbah khan wrote:
> 
> Hi all ....
> 
> I need your suggession to write a driver with such requirements :-
> 
> On Initiation by the application of which key is pressed driver should
> perform the task accordingly. There are 7 keys so seven different task the
> driver will perform. 
> 
> 1 . I do not want to use any entry point such as read/write/ioctl. In such
> a case how to access the driver.
> 2. We dont want to implement this as a chracrter driver.
> 3. The driver shall look pretty much like an application where in
> asscssing the H/W memory map .
> 
> Hence no entry point and no registeration but an application could be able
> to communicate ....
> 
> I need your suggession in this regard .....
> 
> -----Misbah  
> 

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