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Date:      Sat, 24 Aug 2013 08:14:49 +0200
From:      Hans Petter Selasky <hps@bitfrost.no>
To:        George Mitchell <george+freebsd@m5p.com>
Cc:        freebsd-arm@freebsd.org, freebsd-current@freebsd.org
Subject:   Re: ulpt can't attach Lexmark E120
Message-ID:  <52184F59.5080100@bitfrost.no>
In-Reply-To: <521801E5.9000309@m5p.com>
References:  <5105527F.3010708@m5p.com> <201301271915.47712.hselasky@c2i.net> <510570C1.1060607@m5p.com> <201301272007.30682.hselasky@c2i.net> <5105AB16.2000607@m5p.com> <5215F4DF.6000305@m5p.com> <5215F743.8060403@bitfrost.no> <5216ACE5.7000500@m5p.com> <5216FE9F.2030608@bitfrost.no> <52174378.2020101@m5p.com> <521801E5.9000309@m5p.com>

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On 08/24/13 02:44, George Mitchell wrote:
> On 08/23/13 07:11, George Mitchell wrote:
>> On 08/23/13 02:18, Hans Petter Selasky wrote:
>>> On 08/23/13 02:29, George Mitchell wrote:
>>>> On 08/22/13 07:34, Hans Petter Selasky wrote:
>>>

> Give that the printer works fine with the same code on my amd64
> machines, does this suggest we have a byte-ordering problem in the
> driver?                                                   -- George

Hi,

I looked at the code and your debug prints, and it looks like the 
usbd_transfer_setup() function is to blame. To get further debugging 
here, you need to enable hw.usb.debug=15 and hw.usb.dwcotg.debug=15 or 
something like that.

      error = usbd_transfer_setup(uaa->device, &iface_index,
             sc->sc_xfer, ulpt_config, ULPT_N_TRANSFER,
             sc, &sc->sc_mtx);

I think this should be trivial to fix one the cause is found.

--HPS




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