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SubjectRe: IDE ioctl documentation & a new ioctl
Edward Falk wrote:
> Hi all; let me introduce myself: I'm the guy that does IDE sustaining
> for Google.
>
> I'm getting ready to sit down and document the IDE ioctls. Probably
> Documentation/hdio.txt or something like that. Before I start though,
> is anybody already doing this?
>

No one that I know of. I had a thought in the back of my head of tackling ioctl
documentation after I went through the stuff that's already in Documentation, but
I figured I had enough to chew on for right now.

I'd probably make a subdirectory - i. e. Documentation/ioctl/hdio.txt - to
differentiate it from other documents, and make it easier to get maintainers to
put some stuff in there. ;) AFAICT, there is next to no documentation on ioctl's
anywhere in the kernel tarball.

> And while I'm on the subject, we're getting ready to write a new hdio
> ioctl, an extension of HDIO_DRIVE_CMD. The intent here is to be
> slightly more general-purpose than HDIO_DRIVE_CMD, with an eye to
> supporting the full set of SMART functionality. Current plan is to have
> the user pass a struct containing a pointer to the argument list, a
> pointer to the data buffer, and a data buffer length value. Consider
> this a design document; any comments and/or feature requests?
>
> -ed falk
> efalk@google.com
> -
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