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From: David Brownell <david-b@pacbell.net>
To: Peter Matthias <espi@epost.de>, linux-kernel@vger.kernel.org
Cc: linux-usb-devel@lists.sourceforge.net
Subject: Re: ACM USB modem on Kernel 2.6.0-test
Date: Sat, 11 Oct 2003 11:53:27 -0700	[thread overview]
Message-ID: <3F8851A7.3000105@pacbell.net> (raw)

> usb 3-3: configuration #1 chosen from 2 choices
> drivers/usb/class/cdc-acm.c: need inactive config #2
> drivers/usb/class/cdc-acm.c: need inactive config #2

Until we get more intelligence somewhere, do this:

    # cd /sys/bus/usb/devices/3-3
    # echo '2' > bConfigurationValue
    #

That makes the device use vendor-neutral protocols
to talk to the host, not MSFT-proprietary ones.  (It's
important to use the numbers from those messages; they
will change if you use different USB ports.)

Hmm ... maybe usbcore would be better off with a less
naive algorithm for choosing defaults.  Like, preferring
configurations without proprietary device protocols.
That'd solve every cdc-acm case, and likely others.

- Dave



             reply	other threads:[~2003-10-11 18:46 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-11 18:53 David Brownell [this message]
2003-10-12 12:07 ` ACM USB modem on Kernel 2.6.0-test Jamie Lokier
2003-10-12 18:59   ` David Brownell
2003-10-17 20:04 ` David Brownell
2003-10-19 15:13   ` David Brownell
     [not found] <FJVJ.4PN.5@gated-at.bofh.it>
     [not found] ` <I1Yg.6oy.13@gated-at.bofh.it>
     [not found]   ` <I1Yg.6oy.11@gated-at.bofh.it>
2003-10-19  9:34     ` Peter Matthias
     [not found] <FwYB.Z9.25@gated-at.bofh.it>
2003-10-12  8:40 ` Peter Matthias
2003-10-12 12:06   ` Jamie Lokier
2003-10-12 17:52 ` Peter Matthias
2003-10-13 16:28 ` Peter Matthias
     [not found] ` <HJ5m.2Eb.23@gated-at.bofh.it>
2003-10-18 16:21   ` Peter Matthias
     [not found]   ` <Inm6.60T.19@gated-at.bofh.it>
2003-10-20 16:54     ` Peter Matthias
  -- strict thread matches above, loose matches on Subject: below --
2003-10-11 12:38 Peter Matthias

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