From: "milton_aupperle" <milton@outcastsoft.com>

Date: June 19, 2012 12:03:16 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: VT and USB 3

Hi Folks;

Just an update on USB 3 Camera support.

As it turns out, the Caldigit USB 3 Express card only supports Mass Storage class devices for USB 3 and 2.

It will cause a Kernel Panic is you try and use it for generic USB Bulk transfer requests for USB 2 cameras.

I specifically asked is Caldigit if they supported other USB 3 devices including USB 3 cameras for USB 3 access. They said yes back in October 2010. Their support now states no they don't support anything except Mass Storage devices like Hard drive and Card Readers, so I'm out $110 as their card is useless for my intended purposes. None of the other USB 3 cards work any better either.

So short of buying a new 2012 Mac Book to develop for USB 3, this is dead for USB 3 access.

Also, Apple has finally mentioned a few things about USB 3 support on the USB List. They are only supporting their own USB 3 hardware  on Lion or higher - so no Generic xHCI USB 3 support at all - especially over Thunderbolt.

They have no documentation for USB 3 other than saying there are a few new USB 3 specific API's. Until Apple is forth coming on more information, USB 3 support for cameras on the Mac is in Limbo.

TTYL..

Milton Aupperle

--- In Astro_IIDC@yahoogroups.com, "milton_aupperle" <milton@...> wrote:

I have more testing to do with the Card, but I'll likely contact Point Grey Research early next week and see if I can get a USB 3 loaner camera sent out for testing.

So with any luck we Mac users will have access to USB 3 cameras going forward.

TTYL..

Milton Aupperle