How to write a device driver in such a fashion .????
Misbah khan
misbah_khan at engineer.com
Tue Jan 8 15:31:10 EST 2008
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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