Am Mittwoch, 18. April 2007 17:54 schrieb Mike Panetta:
> Just out of curiosity, why do we want to get rid of ioctl calls? They
> aren't all that bad, are they? With an ioctl call its obvious you want
> to write some structured data of some sort to a device to control it,
> with read/write its not immediately obvious that you want to write
> anything more then a string of bytes. Maybe I am just being pedantic,
> either way I am curious as to why the change is proposed.
For a number of reasons.
- we got burned on 32/64 issues
- no easy support for non blocking IO
- no easy support for AIO
Others will come up with more problems.
Now I don't think we can do fully without ioctl(), actions like resetting
a device map very well to it's semantics.
Regards
Oliver
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