Hello. I am trying to mmap a frame buffer device (which I wrote) and it doesn't seem to work. I verified the address - it appears OK. However, whatever I write out to the address from my userland program, the bits appear to go into the bit bucket. I am trying to figure out remap_page_range; what is the value of pgprot_t supposed to be? It appears to be set to: _PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _CACHE_UNCACHED (printed value, 0x407). Any idea why this wouldn't work? I am not too familiar with MIPS so I don't know what a reasonable value should be for pgprot_t. Thanks, Mark - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/