"Dunlap, Randy" wrote:
[snip]
> 3. There's a new (additional) USB compliance spec (at usb.org)
> which addresses power management in more detail.
Is this the IAPC stuff, the droop/drop stuff or something else?
> 4. USB 2.0 Technical Overview:
[snip]
> . Same software interfaces (USBDI) (N/A)
Was there any discussion of this? Is anyone doing it at all?
[snip]
> . Same cables & connectors (mostly; low-speed devices with
> unshielded captive/attached cables are not compliant)
Any reason for this?
[snip]
> . USB 2.0 high-speed devices are required to support full-speed
> signaling at least for enumeration, preferably for some
> (reduced) backward compatibility; high-speed devices must not
> support low-speed signaling.
Err, does this mean that a USB 2.0 hub doesn't _need_ to work when
attached to a USB 1.[0,1] host - all it needs to do is enumerate?
[snip]
> . The USB 2.0 compliance program is being strengthened and a
> "compliance" logo is being added.
Any talk about anyone else doing compliance work?
[snip]
> 6. EHCI (Enhanced Host Controller Interface) and PDK:
>
> . Rev. 0.95 of the ECHI spec for discrete HCs will be the first
> public version (Q3/2000). Gated by validation of 2 discrete
> HCs. Rev. 1.00 to be available in 2001.
> . Developed by Intel with contributions from NEC, Lucent,
> Philips, Compaq, & Microsoft.
Is this the only 2.0 host controller? No more alternate [O,U]HCI issues?
Also, is the validation on the silicon, or using a real driver stack
(presumably Win 2000 based).
[snip]
> . PDKs (Peripheral Development Kits) are planned for late June
> availability. They contain a PCI/USB 2.0 addin card, a USB
> 2.0 software stack for Windows 2000, and USB 2.0 transaction
> generator software.
> . There is also a USB 2.0 Compliance Device that is planned for
> July/2000.
Any idea who is making these? Or approximate cost?
> 7. Phoenix Technologies has a BIOS that will boot from USB
> floppy or Zip drives, working on CD-ROM and LS-120, others
> to follow as needed.
> . To support topology changes, Phoenix wants to see consumer
> pressure on floppy vendors to add serial numbers.
Very cool. Was this a system they planned to ship, or a demo?
> 8. contacts, promised items:
>
> . Met Jim Blackson of Y-E DATA there. Hi Jim. Would you like
> to add anything to this DevCon summary?
> . Met NetChip Technology VP Sales/Mktg Robert Wong.
> . Discussed Linux USB 2.0 support with a GM from Philips.
> His answer to other people was "waiting for Windows 2000
> driver support," but for me his answer was "waiting for
> silicon validation."
> . NEC didn't want to discuss host controller availability
> or Linux support.
> . Lucent was interested in Linux support for USB 2.0 but
> doesn't have devices available yet. They are sending me
> a USB 1.x 4-port (or 4-bus) OHCI adapter (called QuadraBus).
> It has 4 USB ports and one USB/OHCI chip on a PCI addin
> card. Each port is 12 Mb/s, total 48 Mb/s.
> . In-System Design is supposed to send a USB-ATAPI converter
> device to me. Just hook it up to an IDE drive and +5V/Ground
> and it should work. :) Matthew Dharm, can I send this to you?
> . Lexar is interested in having their flash devices supported
> by Linux. I'll plan to have the devices sent directly to
> Matthew Dharm.
Nice to see (some) vendors recognising the possibilities of Linux. Shame
about NEC though. Maybe another approach might work better.
[snip]
Thanks for the summary Randy.
Brad
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