linux-kernel - Re: Huawei E220 and usb storage

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Message-ID: <20071116132256.GA19251@gamma.logic.tuwien.ac.at>
Date:	Fri, 16 Nov 2007 14:22:56 +0100
From:	Norbert Preining <preining@...ic.at>
To:	Pete Zaitcev <zaitcev@...hat.com>
Cc:	Chuck Ebbert <cebbert@...hat.com>,
	Kristoffer Ericson <kristoffer.ericson@...il.com>,
	linux-kernel@...r.kernel.org,
	USB development list <linux-usb-devel@...ts.sourceforge.net>
Subject: Re: Huawei E220 and usb storage

Dear Pete, dear all,

On Mi, 31 Okt 2007, preining wrote:
> On Di, 30 Okt 2007, Pete Zaitcev wrote:
> > The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
> > Can you try zero length with the kernel? It's the second argument to the last.
> 
> I tried with the git patch plus changing the penultimage argument from
> 0x1 to 0.

Ok, did new tests with 2.6.24-rc2:
- with plain kernel the usb-storage modules attaches and detaches
  permanently a virtual cd drive, I stopped after 30+ iterations.

- changing the penultimage argument in the usb_stor_huawei_e220_init
  function from 0x1 to 0 stopped this misbehaviour, but

- with the change from 0x1 to 0 the initialization works automatically.

Can we place change this 0x1 to 0?

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@...ic.at>        Vienna University of Technology
Debian Developer <preining@...ian.org>                         Debian TeX Group
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