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From: Hans Petter Selasky <hselasky@c2i.net>
To: Peter Jeremy <peterjeremy@optushome.com.au>
Date: Sun, 14 Sep 2008 12:47:12 +0200
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Cc: freebsd-usb@freebsd.org
Subject: Re: new usb2 stack : -current patch with mpsafe tty layer available
	?
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On Sunday 14 September 2008, Peter Jeremy wrote:
> On 2008-Sep-14 02:50:25 +0200, Olivier SMEDTS <olivier@gid0.org> wrote:
> >2008/9/14 Hans Petter Selasky <hselasky@c2i.net>:
> >> What does:
> >>
> >> dd if=/dev/da0 of=/dev/null bs=65535
> >>
> >> Output for your memory stick?

Hi Peter,

>
> I thought you needed to do IO in multiples of the blocksize - which
> 65535 is unlikely to be.

You are right: Should be 65536, but I think the CAM layer will handle that. 
Blocksize is typically 512 bytes for USB sticks.

>
> >Not related, I did not notice before, the device seems to read the
> >first sectors slower :
>

--HPS