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From: Hans Petter Selasky <hselasky@c2i.net>
To: Guido van Rooij <guido@gvr.org>
Date: Thu, 4 Oct 2012 12:14:47 +0200
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Cc: freebsd-usb@freebsd.org
Subject: Re: usb3 umass device on usb2 port not recognised
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On Thursday 04 October 2012 10:33:44 Guido van Rooij wrote:
> ct  4 10:31:23 beck kernel: uhub_reattach_port: Port 3 is in Host Mode
> Oct  4 10:31:24 beck kernel: uhub_read_port_status: port 3,
> wPortStatus=0x0500, wPortChange=0x0001,

Hi,

There is a high speed port detection, but it somehow fails. wPortChange=0x0001

In:
sys/dev/usb/controller/ehci.c

Lookup this and you find the reset sequence which is failing.

                case UHF_PORT_RESET:
                        DPRINTFN(6, "reset port %d\n", index);

Suggestions:

a) Do the reset sequence twice.
b) Reduce the USB reset delays.

                        /* Wait for reset to complete. */
                        usb_pause_mtx(&sc->sc_bus.bus_mtx,
                            USB_MS_TO_TICKS(USB_PORT_ROOT_RESET_DELAY));
--HPS