[Pkg-libburnia-devel] Bug#789260: libburn4: Incompatibility with Plextor PX-608CU burner
scdbackup at gmx.net
Mon Jun 22 18:34:17 UTC 2015
> I have found some interesting discussion about UAS bugs in kernel 3.16:
UAS ... google ... wikipedia ...
Well, it would be the natural way to perform SG_IO with a USB
device. Burn programs issue SCSI commands and UAS is designed
for transporting them. Wikipedia has:
"Version 3.18-rc4 of the Linux kernel disables buggy UAS
implementation in xHCI host controllers Etron EJ168,
ASMedia ASM1042, and VIA VL80x."
But i understand that UAS is quite a new protocol.
Is your drive's USB controller young enough ? (Actually
i assume the drive is SATA or IDE and the box has a
USB-SATA or USB-IDE bridge bridge.)
> An here comes the output from my kern.log:
> Jun 22 15:12:02 D-NESTERKIN kernel: [ 1.508233] usb 3-2: Product: PLEXTOR
> USB Storage Adapter
They really give few clue about age and version of the
drive-side USB controller.
I googled for "PLEXTOR USB Storage Adapter" "UAS" and found
nearly nothing. Descriptions of UAS refer to hard disks and
SSDs, rather than optical drives. But - as stated - i expect
it to depend on the USB-SATA or USB-IDE controller of the
In any case, recent changes in USB are obvious suspects.
Now i'm curious whether the working and non-working Linuxes
show a pattern with kernel revisions.
Have a nice day :)
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