Re: DIOCGDISCARDINFO and DIOCDISCARD

[Matthias Drochner <M.Drochner%fz-juelich.de@localhost>]

On Wed, 23 Oct 2013 03:07:59 -0400
Michael <macallan%netbsd.org@localhost> wrote:
> I use mine with PATA adaptors:
> wd0 at atabus0 drive 0
> wd0: <SanDisk SDCFH-008G>

It it identified as "ATAPI" by "atactl identify"? If yes, does the
patch help?
If it identifies as CF-ATA, one could add support for the "Erase",
and possibly "Write Sectors without Erase" to the wd driver (or
possibly an autoconf attachment, to avoid bloat).
There is also some "true IDE" mode mentioned in the spec, which seems
to mean that drive looks exactly like a conventional disk. It is
switched on by pin strapping, so it depends on the adapter.

best regards
Matthias


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