Comment 56 for bug 1833618

16:47 <rafaeldtinoco> sp.. 60-persistent-storage.rules sets the ID_SERIAL for USB devices
16:47 <rafaeldtinoco> it checks first for ATA then ATAPI (with ata_id command)
16:47 <rafaeldtinoco> if it does not work, it falls back to usb_id (from USB device descriptor)
16:48 <rafaeldtinoco> IF you install sg3-utils, it does not check if it is USB or not, it simply tries to put a serial in all SCSI devices (that might be using SCSI only for commands, and not the full SPEC) based on VPDs
16:48 <rafaeldtinoco> so ignoring USB devices for not having VPDs seems ok
16:48 <rafaeldtinoco> as they will be ATA/ATAPI devices (using SCSI commands only)
16:48 <rafaeldtinoco> now, not sure if there is a SCSI device (full implementation) over USB serial
16:49 <rafaeldtinoco> (like SAS disk over USB3 <- not sure in this case)
16:49 <rafaeldtinoco> but it looks broken for those cases either way
16:49 <rafaeldtinoco> as sg3-utils dont make any decision for different USB devices