Sorry if this isn't related, it seemed like it was... I recently discovered one of our drivers isn't written correctly for 64-bit. It uses a uint32_t to hold an address. Whoops. In previous drivers when I've needed to hold an address, I've used an "unsigned long", as (so far as I could tell) that would give me the correct number of bytes whether on 32 or 64-bit systems. Now that I have to fix this driver, I'd rather do whatever the "standard" method is for storing an address value. Looking at code in the kernel and linux/types.h, I see "phys_addr_t and dma_addr_t. Is that what I want to use? What if it's a virtual address? void *? Thanks. Rob _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies