Comment # 26 on bug 926053 from Thomas Blume

(In reply to Robert Milasan from comment #25)
> Who's using and why is using ID_SCSI_SERIAL?

Ah, Robert, you are right, it isn't ID_SCSI_SERIAL.
It is ID_SERIAL_COMPAT from codepage 0x80.
See this rule, it calls explicitely page 0x80:

-->--
# scsi compat links for ATA devices
KERNEL=="sd*[!0-9]", ENV{ID_BUS}=="ata", PROGRAM="scsi_id --whitelisted
--replace-whitespace -p0x80 -d $devnode", RESULT=="?*"
, ENV{ID_SCSI_COMPAT}="$result",
SYMLINK+="disk/by-id/scsi-$env{ID_SCSI_COMPAT}"
KERNEL=="sd*[0-9]", ENV{ID_SCSI_COMPAT}=="?*",
SYMLINK+="disk/by-id/scsi-$env{ID_SCSI_COMPAT}-part%n"
--<--