asynchronous raw io

[Krishna Chaitanya]

Hi All!

I am serching for an mechanism which does the following:

visiblity control:
Where a hardware buffer has to be visible to the user space.
I believe I can use mmap.

async notification:
As soon as the  hardware buffer completion is done. It has to be
signalled/callbacked to the user-space, and the corresponding handler
to the signal runs.

Can any one point out the source/docs for such a mechanism.

Thanks+,
krs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/