This is one way, there are others.
/* Setup */
kern_addr = pci_alloc_consistent(dev,size,&bus_addr);
/* pass bus_addr to other device; that device can now
read from this devices memory
Just copy your data to kern_addr to be copied and signal
the other device to fetch it.
*/
/* Tear down */
pci_free_consistent(dev,size,kern_addr,bus_addr);
> Could any one give me pointer for DMA(example code ). I badly need it
Everybody needs his solution badly :)
--
ash nazg durbatulûk, ash nazg gimbatul,
ash nazg thrakatulûk agh burzum-ishi krimpatul
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
FAQ: http://kernelnewbies.org/faq/
