From: Sujith <m.sujith@gmail.com>
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Message-ID: <19794.49430.480720.290057@gargle.gargle.HOWL>
Date: Wed, 9 Feb 2011 22:00:14 +0530
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Sujith <m.sujith@gmail.com>,
	Jussi Kivilinna <jussi.kivilinna@mbnet.fi>,
	Martin Schleier <drahemmaps@gmx.net>,
	<linux-wireless@vger.kernel.org>, <dsd@gentoo.org>,
	<linville@tuxdriver.com>, <kune@deine-taler.de>,
	<linux-usb@vger.kernel.org>, <gregkh@suse.de>
Subject: Re: Override endpoint attributes (was: RE: [PATCH] zd1211rw: change
 endpoint types of EP_REGS_OUT and EP_INT_IN from interrupt to bulk)
In-Reply-To: <Pine.LNX.4.44L0.1102091017370.2050-100000@iolanthe.rowland.org>
References: <19793.64449.344588.240418@gargle.gargle.HOWL>
	<Pine.LNX.4.44L0.1102091017370.2050-100000@iolanthe.rowland.org>
Sender: linux-wireless-owner@vger.kernel.org

Alan Stern wrote:
> On Wed, 9 Feb 2011, Sujith wrote:
> 
> > > The first two problems are the device's fault, and the third is the 
> > > driver's fault.  None of them are the fault of usbcore.
> > 
> > Indeed, which is why this dirty hack is done in the driver.
> > And it was done to fix a similar issue - high CPU usage when scanning.
> > 
> > But do you have any suggestion for such broken devices ?
> > The FW changes the type from Interrupt to Bulk, but can the host
> > driver continue to use Interrupt URBs and use the URB_NO_INTERRUPT trick
> > that you have mentioned ?
> 
> Yes.  And it's not a trick; that is exactly what URB_NO_INTERRUPT was 
> intended for.

Ok, thanks. Will fix the driver then.

Sujith