From: Greg KH <greg@kroah.com>
To: Pete Zaitcev <zaitcev@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Patch to add usbmon
Date: Fri, 4 Feb 2005 15:47:34 -0800 [thread overview]
Message-ID: <20050204234734.GA28862@kroah.com> (raw)
In-Reply-To: <20050201222513.358d1db6@localhost.localdomain>
On Tue, Feb 01, 2005 at 10:25:13PM -0800, Pete Zaitcev wrote:
> This patch adds so-called "usbmon", or USB monitoring framework, similar
> to what tcpdump provides for Ethernet. This is an initial version, but
> it should be safe and useful. It adds an overhead of an if () statement
> into submission and giveback paths even when not monitoring, but this
> was deemed a lesser evil than stealth manipulation of function pointers.
>
> The patch makes two changes to hcd.c which make usbmon more useful:
> - Change the way we determine that DMA should not be mapped for root
> hubs, so that usbmon knows easily when it's safe to capture data.
> - Return exports of usb_bus_list and usb_bus_list_lock for those who
> wish to build usbmon as a module.
>
> This version of the patch changes #define to inlines for hooks and
> drops extra mod_ops.
>
> Signed-off-by: Pete Zaitcev
Applied, thanks.
greg k-h
prev parent reply other threads:[~2005-02-04 23:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 5:29 Patch to add usbmon Pete Zaitcev
2005-02-01 7:10 ` Greg KH
2005-02-01 8:32 ` Pete Zaitcev
2005-02-01 11:13 ` Marcel Holtmann
2005-02-01 17:55 ` Pete Zaitcev
2005-02-01 21:37 ` Marcel Holtmann
2005-02-02 5:59 ` Pete Zaitcev
2005-02-02 16:40 ` Marcel Holtmann
2005-02-02 18:54 ` Pete Zaitcev
2005-02-05 0:19 ` Marcel Holtmann
2005-02-02 6:25 ` Pete Zaitcev
2005-02-04 23:47 ` Greg KH [this message]
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