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Date: Fri, 11 Apr 2014 16:13:59 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: Daniel O'Connor <doconnor@gsoft.com.au>
Subject: Re: USB 3 devices not reliably connecting at 5Gbps
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On 04/11/14 12:19, Daniel O'Connor wrote:
>
> On 11 Apr 2014, at 19:38, Hans Petter Selasky <hps@selasky.org> wrote:
>> On 04/11/14 09:29, Daniel O'Connor wrote:
>>> 	    usb_xf[i].xf = libusb_alloc_transfer(0);
>>> 	    usb_xf[i].idx = i;
>>> 	    usb_xf[i].done = 0;
>>> 	    usb_xf[i].submitted = 0;
>>
>> I think you can get more speed in libusb:
>
>>                 bufsize = 16384;
>>
>> ^^^ add a clause for super-speed to use 32K/64K here:
>
> I think that only applies to libusb 0.1 - I am using the 1.0 API.
>

Hi,

Try this patch. I'm pretty sure you can get +256
MByte/second using LibUSB too.

http://svnweb.freebsd.org/changeset/base/264344

--HPS