HEADSUP new usb code coming in.

Kevin Oberman oberman at es.net
Tue Aug 19 20:20:06 UTC 2008

> Date: Tue, 19 Aug 2008 12:44:13 -0700
> From: Alfred Perlstein <alfred at freebsd.org>
> Sender: owner-freebsd-current at freebsd.org
> After a long period of review and testing I am on the verge of
> committing Hans Peter's new usb stack to -current.
> The patchset requires a SMALL _493_ line diff to the main code,
> mostly bug fixes to arm.  And then a large number of new files
> for the usb system.
> The new usb system will be committed as separate files with
> the intention of folding them over the old files before the
> 9.0 release.
> The diff to the main files is here:
> http://mu.org/~bright/usb2/usb2_release_001.diff
> The whole diff, including new files is here:
> http://mu.org/~bright/usb2/usb4bsd.diff.gz
> FAQ:
> Q. Has this been reviewed?
> A. Yes, pretty strongly by myself and we've consulted with
> various others, Warner, Scott and Andrew for review/testing.
> I wouldn't say that Warner or Scott have given full review
> but just about all questions have been answered.
> Q. Can we change the name from "usb2_" to my favorite name?
> A. No.   This is for a short period, stop being so annoying.
> Q. What about the old usb code?
> A. What about it? :D
> Q. What about ttys?
> A. I don't know, we'll address the mpsafe aspects of ttys shortly,
> Hans is very responsive to SMP issues.
> Q. Shouldn't you wait?
> A. Wait for what?  No.
> Q. I have some whitespace nits, can you do those?
> A. No.  It's a 100k line diff and a 3meg delta, we tried really hard
> to get all whitespace right, but you're welcome to point things out after
> the commit.

Cool! I've been waiting for this for a loooooong time. Thanks to you,
Hans Peter and all of the folks who have helped!

Not on the FAQ:

Q: Other then no longer requiring giant [MPSAFE], what does usb2 give
   us?  Does it fix the battery-eating on laptops? Does it allow the
   system to reach C3 and lower sleep states? (These are at least
   closely linked issues.)

I have not been running current for a while and this might be enough
incentive to get me to kick the tires.
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751
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