On Sat, 3 Jan 2009, Alexander Potashev wrote:
> Hello, Robert!
>
> On 10:12 Sat 03 Jan , Robert P. J. Day wrote:
> > the last i heard, while ioctl's aren't going away any time soon,
> > they're deprecated in favour of ... uh, files under /sys? am i
>
> How is it possible to replace ioctls by files in /sys? Should my kernel
> module create a file in /sys and communicate with applications through
> read/write syscalls?
that would be the standard way. ioctl()s are just one of a number
of user<->kernel space communication mechanisms and, IIRC, ioctls are
now deprecated since they have no real structure to them. having your
kernel code create and manipulate files under /sys is *allegedly* a
more structured way of doing things, but i'm willing to be corrected
if someone knows any better.
rday
--
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Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
Have classroom, will lecture.
http://crashcourse.ca Waterloo, Ontario, CANADA
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