On Fri, Sep 16, 2016 at 7:06 PM, Austin S. Hemmelgarn
<ahferro...@gmail.com> wrote:
> 1. UAS (not some other SCSI transport) without UNMAP support.
> 2. Supports ATA_12 or ATA_16 pass through.
> 3. ATA DEVICE IDENTIFY via SAT indicates that the device supports
> DISCARD/TRIM.
> Then we'd be matching behavior on Windows, and should probably be relatively
> safe.

This very clearly seems like a sensible plan. It's nice to learn that
someone with a USB sniffer (and not just a d├ęsassembler :P) confirms
this is what Windows is doing. I see no reason for Linux not to do the
same. Are there any remaining objections to this plan?

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