Date: Mon, 8 Feb 2010 18:48:40 +0100 From: Alexey Shuvaev <shuvaev@physik.uni-wuerzburg.de> To: Matthias Apitz <guru@unixarea.de> Cc: freebsd-current@freebsd.org, hselasky@c2i.net Subject: Re: USB cdce stopped working (and not only cdce?) Message-ID: <20100208174840.GA13739@wep4035.physik.uni-wuerzburg.de> In-Reply-To: <20100208153308.GA2071@current.Sisis.de> References: <20100208153308.GA2071@current.Sisis.de>
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On Mon, Feb 08, 2010 at 04:33:08PM +0100, Matthias Apitz wrote: > > Hello, > > I've just realized that while plug-in my OpenMoko Freerunner into the > USB port it does not give a cdce0 interface, but just an error: > > Feb 8 16:29:26 current kernel: usb2_alloc_device:1569: set address 2 > failed (USB_ERR_STALLED, ignored) > Feb 8 16:29:26 current kernel: usb2_alloc_device:1607: getting device > descriptor at addr 2 failed, USB_ERR_STALLED! > Feb 8 16:29:27 current kernel: usb2_req_re_enumerate:1519: addr=2, set > address failed! (USB_ERR_STALLED, ignored) > Feb 8 16:29:27 current kernel: usb2_req_re_enumerate:1533: getting > device descriptor at addr 2 failed, USB_ERR_STALLED! > Feb 8 16:29:28 current kernel: usb2_req_re_enumerate:1519: addr=2, set > address failed! (USB_ERR_STALLED, ignored) > Feb 8 16:29:28 current kernel: usb2_req_re_enumerate:1533: getting > device descriptor at addr 2 failed, USB_ERR_STALLED! > Feb 8 16:29:28 current kernel: ugen5.2: <(null)> at usbus5 > (disconnected) > Feb 8 16:29:28 current kernel: uhub_reattach_port:416: could not > allocate new device! > > Until some days ago it worked (and I have not changed) the kernel since > then: > > # uname -a > FreeBSD current.Sisis.de 8.0-CURRENT FreeBSD 8.0-CURRENT #5: Sun Jan 10 > 09:55:14 CET 2010 guru@current.Sisis.de:/usr/obj/usr/src/sys/GENERIC > i386 > > # bzip2 -dc messages.*.bz2 | fgrep cdce > Feb 5 12:51:21 current kernel: cdce0: <CDC Communications Control> on usbus5 > Feb 5 12:51:21 current kernel: ue0: <USB Ethernet> on cdce0 > Feb 5 14:30:40 current kernel: cdce0: at uhub0, port 1, addr 2 (disconnected) > Feb 5 14:50:17 current kernel: cdce0: <CDC Communications Control> on usbus5 > Feb 5 14:50:17 current kernel: ue0: <USB Ethernet> on cdce0 > Feb 5 17:03:25 current kernel: cdce0: at uhub0, port 1, addr 2 (disconnected) > Feb 4 14:21:52 current kernel: cdce0: <CDC Communications Control> on usbus5 > Feb 4 14:21:52 current kernel: ue0: <USB Ethernet> on cdce0 > Feb 4 15:00:05 current kernel: cdce0: at uhub0, port 1, addr 2 (disconnected) > Feb 4 16:05:07 current kernel: cdce0: <CDC Communications Control> on usbus5 > Feb 4 16:05:07 current kernel: ue0: <USB Ethernet> on cdce0 > Feb 4 17:16:48 current kernel: cdce0: at uhub0, port 1, addr 2 (disconnected) > > What could be the reason for the above message? Thx > > matthias > I have noticed that it is relatively easy to wedge the USB stack on recent CURRENT. Personally I manage to reliable wedge it by a user-space program using devel/libftdi (-> libusb in base) by re-programming the 'chunk-size' from 4096 to 1 byte. Haven't looked at it more closely yet. Another similar report was: http://lists.freebsd.org/pipermail/freebsd-current/2010-January/015200.html Under 'wedge' I mean that anything connected to a 'wedged' HUB fails to enumerate. Workarounds: 1) Try to use the port on another HUB (normally 1 HUB serves 2 USB ports). 2) Reboot the computer and try again. Hans, do you have any ideas? P.S. My CURRENT is not so current at the moment :) ~> uname -a FreeBSD wep4035 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r202285: Thu Jan 14 19:04:21 CET 2010 root@wep4035:/usr/obj/usr/src/sys/GENERIC amd64 Alexey.
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