On Fri, Sep 16, 2016 at 7:06 PM, Austin S. Hemmelgarn <ahferroin7@xxxxxxxxx> 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 désassembler :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? -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html