On Tue, Mar 13, 2018 at 12:42:47PM +0100, Kashyap Chamarthy wrote:
> [Cross-posted to 'linux-scsi' and 'linux-usb' lists; please keep me
> Cced, as I'm not subscribed to either of them.)


> I was suggested to return this SSD.  But the Interweb[%] claims Samsung
> T5 *does* have 'TRIM' (i.e. SCSI 'UNMAP') support via UASP.

Earlier, I didn't know which list to email, so I wrote to Martin K.
Petersen (who pointed me to the lists when I asked where I can post
publicly), and he made this observation on the above quoted text:

    "Linux can run USB block devices in either legacy or UAS mode.
    Chances are this device is being driven in usb-storage mode. We
    usually have quirks based on the model strings that decide whether
    to use one or the other."



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