Sharkoon QuickPort XT USB3.0 at full speed only

[Hans Petter Selasky]

On Sunday 23 October 2011 10:31:50 Franz Schwartau wrote:
> Hi again,
> 
> meanwhile I did some debugging.

Hi,

What does "usbconfig" output?

Did you load the xhci module?

What does your dmesg look like?

--HPS

> 
> QuickPort dump_device_desc:
> http://pastebin.com/h62jLHui
> 
> QuickPort dump_curr_config_desc:
> http://pastebin.com/6rheBiMi
> 
> Debug messages (hw.usb.debug=4):
> http://paste2.org/p/1733421
> 
> I found an external HDD enclosure (Sharkoon Rapid-Case 3.5" SATA USB3.0)
> which uses the same SATA bridge chip (ASM1051, Vendor 0x174C, Product
> 0x55AA). Attached to an USB port it uses high speed instead of full
> speed of the QuickPort.
> 
> Rapid-Case dump_device_desc:
> http://pastebin.com/B7suMZG7
> 
> Rapid-Case dump_curr_config_desc:
> http://pastebin.com/D6xPyYUp
> 
> The only difference I could find is wMaxPacketSize in Endpoint 0 and
> Endpoint 1 is set to 0x40 for the QuickPort. The Rapid-Case external
> enclosure has set wMaxPacketSize to 0x200.
> 
> Having a look at lsusb's output under Linux wMaxPacketSize is set to
> 0x200 even for the QuickPort:
> 
> http://pastebin.com/fMcxhKax
> 
> If more debug information is needed don't hesitate to ask. :-)
> 
> 	Best regards
> 		Franz
> 
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