linux-kernel - Re: [linux-usb-devel] [PATCH] Remove duplicate ID in ipaq driver

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Message-ID: <20070517124333.GB20055@kroah.com>
Date:	Thu, 17 May 2007 05:43:33 -0700
From:	Greg KH <greg@...ah.com>
To:	Ben Collins <ben.collins@...ntu.com>
Cc:	Roland Dreier <rdreier@...co.com>,
	Linus Torvalds <torvalds@...l.org>,
	linux-kernel@...r.kernel.org,
	linux-usb-devel@...ts.sourceforge.net,
	Ganesh Varadarajan <ganesh@...itas.com>
Subject: Re: [linux-usb-devel] [PATCH] Remove duplicate ID in ipaq driver

On Wed, May 16, 2007 at 05:36:48PM -0400, Ben Collins wrote:
> On Wed, 2007-05-16 at 13:59 -0700, Roland Dreier wrote:
> > >  	/* The first entry is a placeholder for the insmod-specified device */
> >  > -	{ USB_DEVICE(0x049F, 0x0003) },
> > 
> > Is it obvious why this patch is correct?  Especially given the
> > comment just before the line you delete, and the code
> > 
> > 	if (vendor) {
> > 		ipaq_id_table[0].idVendor = vendor;
> > 		ipaq_id_table[0].idProduct = product;
> > 	}
> > 
> > in ipaq_init()?
> 
> My mistake, quick on the patching going through this dupe list.
> 
> Might I add that this is terrible use of the device table, though.
> Clutters userspace, and adds processing to module-init-tools programs.

It's a hold-over from the times when we didn't have the sysfs "add a new
id" interface for usb-serial drivers, which only recently was created.

So we just have to live with it, and the infinitesimal speed hit it
creates :)

thanks,

greg k-h
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