linux-kernel - Re: [PATCH] usb: add Freescale QE/CPM USB peripheral controller driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 28 Aug 2008 16:16:15 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Scott Wood <scottwood@...escale.com>
cc:	Arnd Bergmann <arnd@...db.de>, <dbrownell@...rs.sourceforge.net>,
	<greg@...ah.com>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linuxppc-dev@...abs.org>,
	Li Yang <leoli@...escale.com>
Subject: Re: [PATCH] usb: add Freescale QE/CPM USB peripheral controller
 driver

On Thu, 28 Aug 2008, Scott Wood wrote:

> Alan Stern wrote:
> > This was done deliberately.  The relevant standards state that a USB
> > device can have no more than one peripheral interface.
> 
> Does building a kernel image that can run on different hardware without 
> rebuilding also violate the "relevant standards"?

No.  That isn't what Arnd was concerned about.  He noted that even if 
you did build multiple modules, only one of them could be loaded at any 
time.

> And who's to say that there aren't multiple USB devices on a single 
> board, that just happen to share a CPU and memory? :-)

That's why I don't fully support this decision.  But I wanted to point 
out that there _was_ a conscious decision, as opposed to bad 
programming through sheer carelessness.

Alan Stern

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/