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 > -- View this message in context: http://www.nabble.com/How-to-write-a-device-driver-in-such-a-fashion-.-----tp14660018p14682271.html Sent from the linuxppc-dev mailing list archive at Nabble.com. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
