Ulrich Spörlein wrote: > On Sat, 27.06.2009 at 12:06:04 -0600, Scott Long wrote: >> Alexander Motin wrote: >>> This is not a problem. ATA disks does not have SCSI INQUIRY command. >>> They use own IDENTIFY instead. inquiry should work for ATAPI devices, as >>> they are SCSI deep inside. >> This is really the big missing piece in camcontrol; we need to add >> support for getting the IDENT info and getting/setting various >> attributes, as well as sending ATA commands over passthrough. > > not sure if this is related, but I always wondered why tools like > smartctl never work with USB attached ATA disks. Is it missing support > in our drivers and smartctl or is it simply impossible? I don't know much about USB storages and protocols used there, but I think it is the ATA->SCSI protocol conversion done by ATA->USB adapter limits functionality. If this is correct: http://en.wikipedia.org/wiki/USB_mass_storage_device_class , it is impossible to avoid this conversion in common case. -- Alexander MotinReceived on Mon Jun 29 2009 - 09:24:07 UTC
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