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From: Hans Petter Selasky <hselasky@c2i.net>
To: Stanislav Sedov <stas@freebsd.org>
Date: Tue, 6 Jan 2009 20:43:19 +0100
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	Alfred Perlstein <alfred@freebsd.org>, src-committers@freebsd.org
Subject: Re: svn commit: r186730 - in head: lib/libusb20
	sys/dev/usb2/controller sys/dev/usb2/core
	sys/dev/usb2/ethernet sys/dev/usb2/image sys/dev/usb2/include
	sys/dev/usb2/serial sys/dev/usb2/sound sys/dev/us...
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On Tuesday 06 January 2009, Stanislav Sedov wrote:
> On Tue, 6 Jan 2009 20:04:51 +0100
>
> Hans Petter Selasky <hselasky@c2i.net> mentioned:
> > On Tuesday 06 January 2009, Stanislav Sedov wrote:
> > > http://www.SpringDaemons.com/stas/dmesg
> >
> > From the debug messages it might look like your device has a problem with
> > clearing the stall. Try commenting out the following lines in "ubsa2.c":
> >
> >         /* clear stall at first run */
> >         sc->sc_flag |= (UBSA_FLAG_WRITE_STALL |
> >             UBSA_FLAG_READ_STALL);
>
> This doesn't affect anything. :-(
>
> BTW, sometime I see the following after plugging in the module:

In the function "ubsa_cfg_request":

Try:

1) Always return - no requests: Do you get AT+OK back on the modem channel?
2) Add pause("DLY", hz / 10); in that function.

--HPS

>
>   usb2_alloc_device:1458: getting device descriptor at addr 2 failed!
>   usb2_req_re_enumerate:1362: addr=2, set address failed! (ignored)
>   usb2_req_re_enumerate:1375: getting device descriptor at addr 2 failed!
>   usb2_req_re_enumerate:1362: addr=2, set address failed! (ignored)
>   usb2_req_re_enumerate:1375: getting device descriptor at addr 2 failed!
>   uhub_reattach_port:417: could not allocate new device!
>
> and the device doesn't attach.