Re: [smartmontools-support] Hack for Prolific PL3507 USB bridge

[Edward S. <ejs...@gm...>]

A bit more digging, and I think a different second command is needed to 
retrieve the ATA output registers with the PL3507, e.g. to do a SMART 
health check with 2 sg_raw commands:

# sg_raw -v -v -r 512 /dev/sdb df 10 00 00 01 da 00 00 4f c2 a0 b0 06 7b ; 
sg_raw -v -v -r 512 /dev/sdb de 00 06 7b 00 00
open /dev/sdb with flags=0x802
    cdb to send: df 10 00 00 01 da 00 00 4f c2 a0 b0 06 7b 
SCSI Status: Good 

No data received
open /dev/sdb with flags=0x802
    cdb to send: de 00 06 7b 00 00 
SCSI Status: Good 

Received 12 bytes of data:
 00     50 00 00 00 4f c2 a0 50  17 00 00 00                P...O..P....