Hi, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> writes: > On Thu, 2018-03-15 at 08:03 +1100, Benjamin Herrenschmidt wrote: >> > > Do you have more comments for the rest of the driver or that's it ? >> > >> > so far, that's it. >> >> Ok. I'll re-send. > > So I'll resend in a minute, doing a few more tests, however, I've > noticed something which I wont' have time to track down til at > best next week, I wonder if it's normal/expected. > > If I just create a mass storage function set to be "removable" and > "cdrom" with no file attached, and enable it, I get an endless stream > of resets. It looks like the host constantly does USB resets. > > I suspect the host is sending SCSI commands that fail and resets > as a result, but that's spamming both logs and is rather ... sub > optimal. > > Do we know what's going on ? Is this just TEST_UNIT_READY or some other > media check ? Or are we missing some commands we should actually > implement in the mass storage gadget ? enable debugging for mass storage, there's a lot of intersting information there. -- balbi
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