To the best of my knowledge, dev_t number is still 16 bits with 8 most
significant bits being the major number and the other 8 bits being the
minor number; which of course means that minor numbers can only go up to
255. Has this limitation been some how addressed with 2.4? 256 devices
per module
I am trying to find a way to pin down user space memory from kernel, so
that these user space buffer can be used for direct IO transfer or
otherwise known as "zero copying IO". Searching through the Internet and
reading comments on various news groups, it would appear that most
developers includi
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