semi-raw access to flash

[Russ Dill]

I'm trying to get semi-raw access to flash in userspace. I'd like to be
able to mmap the flash and write to it (with mtd handling the unlock
commands) but not have mtd automatically cache and erase blocks, etc for
me. /dev/mtd? would be great, but its only a char device, so I can't
mmap it. /dev/mtdblock? is mmapable, but it tries to emulate a true
block device with its automatic erasing and rewriting.