>> look for sdparm, perhaps. hdparm don't do much on SCSI :)
>Nope. We probably won't be able to do this on external USB/Firewire
>drives. The interfaces don't handle things like SCSI START STOP et el
>I had a lengthy discussion and tests with Douglas Gilbert, author of
>sdparm, about this. We concluded that we can't seem to find interfaces
>that implements the missing features.
>The functionality -has- been added to sdparm, and it works with cdrom.
I'd prefer sdparm implemented hdparm command set where applicable
then extended it as required for SCSI.
>If anyone having external USB/Firewire boxes would care to try out
>sdparm and report (hopeful) success, I'd really appreciate it!
>Please CC me, and include info about the box/interface.
# sdparm -ivvvv /dev/sda
inquiry cdb: 12 00 00 00 24 00
/dev/sda: TOSHIBA MK6014MAP 0811
inquiry cdb: 12 01 83 00 fc 00
malformed VPD response, VPD pages probably not supported
Genesys GL-811 USB 2.0 bridge, with linux-220.127.116.11 on:
sdparm 0.94 correctly identifies the hard drive inside the USB enclosure,
the hard drive is powered from USB via two connectors (and a hardware
hack to add some supply bypassing caps).
Is this a limit of the USB driver, or the USB bridge chip? If it is the
driver then nobody seems to be working on it, I last looked into this area
about March this year. Not that I know much of USB, it seems okay for
mice and less so for much else :o)