USB 3 devices not reliably connecting at 5Gbps

[Hans Petter Selasky]

On 04/11/14 16:29, Daniel O'Connor wrote:
>
> On 11 Apr 2014, at 23:43, Hans Petter Selasky <hps at selasky.org> wrote:
>> Try this patch. I'm pretty sure you can get +256
>> MByte/second using LibUSB too.
>>
>> http://svnweb.freebsd.org/changeset/base/264344
>
> Unfortunately it doesn't seem to have a no impact on performance - I still get 187MB/sec.
>
> --
> Daniel O'Connor software and network engineer
> for Genesis Software - http://www.gsoft.com.au
> "The nice thing about standards is that there
> are so many of them to choose from."
>    -- Andrew Tanenbaum
> GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
>
>
>

Hi,

Can you check using ldd, that it is using the libusb you installed?

Also check using "usbdump" what size the kernel is submitting when you 
are using libusb.

Thank you!

--HPS