Re: Firewire Disks. (fwd)

Roberto Nibali
2002-06-10T20:19:39Z

Hello,

> A lot of caddies that wrap hd's have started coming out and, as you may
> know, USB 2.0 supports 480mbps x-fer rate (ideal). So it's pretty
> intreguing.

Yeah, I know but ieee1394 with 400Mbps is fast enough for my laptop and
honestly I doubt that either one, be it USB2.0 or ieee1394, can really
sustain this high transfer rate for a reasonable amount of time. And for
most applications it is simply not needed. Maybe if you do TCP/IP over
those technologies. But YMMV and I accept that. For me it was the
cheapest alternative (450 bucks) to buying another harddisk for my laptop.

> Does the SCSI layer via sbp2 provide functionality for USB 2.0 (EHCI)
> disks?

Please read the first 150 lines of [1]. If you want USB2.0 (wrapped)
devices support you need to check out [2]. It's a 'glue' with the SCSI
subsystem, but Greg KH can tell you much more about it.

[1] ../linux/drivers/ieee1394/sbp2.c
[2] ../linux/drivers/usb/storage/*, specially transport.c

Best regards,
Roberto Nibali, ratz
--
echo '[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq'|dc