On 25 Mar 99, at 22:23, Tomasz Motylewski wrote:
>
> I have just prepared the first release of a code allowing to mmap the big
> memory area allocated in the kernel by vmalloc. It is based on bttv.c
> driver.
>
> I would like ask to you for your comments about this code:
>
> http://crds.chemie.unibas.ch/PCI-MIO-E/mbuff-0.1.tar.gz
>
> I even think it could be used as mmap handler fro RT-FIFOs and included in
> RT-Linux distribution. Should I prepare such patch?
>
> If this method of geting kernel/user shared memory was not documented
> before, probably it could be mentioned in
> http://www.isd.cme.nist.gov/projects/emc/shmem.html and other
> documentation ?
>
>
> --
> Tomasz Motylewski
>
This seems to do a similar thing to a shared memory patch I put
together some time ago. However it used (on process side) a posix
like shared memory system call (rather than a shared memory
device file), but in the end you still used the same mmap to do the
actual mapping.
Few people seemed interested at the time, but maybe the time has
come to dust of the code and take another look at it.
Regards,
Ian Ridley
mailto:[EMAIL PROTECTED]
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