I'm new to your code,  have only seen a small bit of it,
but from what I've seen,  it does not offer  "general DIAG".

On Mon, 10 Oct 2005, Christian Borntraeger wrote:
> vmcp has the same capability. You can open the devicenode /dev/vmcp
> read the repsonse and use an ioctl to query the return code. You
> can also use another ioctl to query the size of the response, if
> the buffer would have been large enough. So in fact, you can
> implement the buffer resizing/retry logic on top of the vmcp kernel
> module.

You missed the point.
The point is that neither 'vmcp' nor /dev/vmcp offer even a hint of
the underlying DIAG interface.   Both 'vmcp' and /dev/vmcp obscure
the DIAG interface from the very programmers who should see it.

In the CPINT case,  yes,  'hcp'  hides the DIAG details.
That's as it should be.

> We are currently discussion the user space application, the kernel
> module is able to do all the different things using the ioctls.

For which DIAGnose codes?   By way of what /dev entries?

-- R;

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