From: Greg KH <greg@kroah.com>
To: Jon Smirl <jonsmirl@gmail.com>
Cc: Ian Romanick <idr@us.ibm.com>, Dave Airlie <airlied@linux.ie>,
Arjan van de Ven <arjan@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
Date: Fri, 5 May 2006 13:26:03 -0700 [thread overview]
Message-ID: <20060505202603.GB6413@kroah.com> (raw)
In-Reply-To: <9e4733910605051314jb681476y4b2863918dfae1f8@mail.gmail.com>
On Fri, May 05, 2006 at 04:14:00PM -0400, Jon Smirl wrote:
> I would like to see other design alternatives considered on this
> issue. The 'enable' attribute has a clear problem in that you can't
> tell which user space program is trying to control the device.
> Multiple programs accessing the video hardware with poor coordination
> is already the source of many problems.
Who cares who "enabled" the device. Remember, the majority of PCI
devices in the system are not video ones. Lots of other types of
devices want this ability to enable PCI devices from userspace. I've
been talking with some people about how to properly write PCI drivers in
userspace, and this attribute is a needed part of it.
And if X gets enabling the device wrong, again, who cares, it's not a
kernel issue. :)
thanks,
greg k-h
next prev parent reply other threads:[~2006-05-05 20:27 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-29 8:46 Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access Arjan van de Ven
2006-04-29 8:51 ` Andrew Morton
2006-04-29 8:59 ` Arjan van de Ven
2006-04-29 9:04 ` Dave Airlie
2006-05-02 16:14 ` Bjorn Helgaas
2006-05-02 16:21 ` Greg KH
2006-05-02 16:51 ` Jesse Barnes
2006-05-04 19:09 ` Bjorn Helgaas
2006-05-04 19:11 ` Arjan van de Ven
2006-05-04 19:26 ` Bjorn Helgaas
2006-05-04 19:42 ` Matthew Garrett
2006-05-04 20:40 ` Jon Smirl
2006-05-04 21:05 ` Peter Jones
2006-05-04 21:17 ` Martin Mares
2006-05-04 21:29 ` Peter Jones
2006-05-04 21:37 ` Martin Mares
2006-05-04 21:38 ` Jon Smirl
2006-05-04 23:22 ` Peter Jones
2006-05-05 19:20 ` Ian Romanick
2006-05-05 20:14 ` Jon Smirl
2006-05-05 20:26 ` Greg KH [this message]
2006-05-05 20:35 ` Jon Smirl
2006-05-05 20:43 ` Jon Smirl
2006-05-05 21:10 ` Greg KH
2006-05-05 21:06 ` Greg KH
2006-05-05 21:15 ` Jon Smirl
2006-05-05 22:27 ` Greg KH
2006-05-06 0:05 ` Jon Smirl
2006-05-06 1:57 ` Dave Airlie
2006-05-06 3:39 ` Jon Smirl
2006-05-06 12:42 ` Krzysztof Halasa
2006-05-06 13:08 ` Jon Smirl
2006-05-06 18:10 ` Krzysztof Halasa
2006-05-06 18:24 ` Jon Smirl
2006-05-06 23:16 ` Krzysztof Halasa
2006-05-07 5:56 ` Kyle Moffett
2006-05-07 12:05 ` Krzysztof Halasa
2006-05-07 19:07 ` Kyle Moffett
2006-05-08 0:03 ` Krzysztof Halasa
2006-05-07 13:12 ` Pavel Machek
2006-05-08 14:26 ` Kyle Moffett
2006-05-08 14:54 ` Arjan van de Ven
2006-05-08 4:06 ` Dave Airlie
2006-05-08 5:27 ` Jon Smirl
2006-05-07 8:54 ` Adam Belay
2006-05-14 0:29 ` Benjamin Herrenschmidt
2006-05-14 0:56 ` Jon Smirl
2006-05-14 23:57 ` Benjamin Herrenschmidt
2006-05-15 0:14 ` Jon Smirl
2006-05-14 0:57 ` Patrick McFarland
2006-05-14 1:11 ` Jon Smirl
2006-05-04 21:18 ` Jon Smirl
2006-05-04 21:38 ` Peter Jones
2006-05-04 21:48 ` Jon Smirl
2006-05-04 21:57 ` Peter Jones
2006-05-04 22:05 ` Jon Smirl
2006-05-04 19:49 ` Arjan van de Ven
2006-05-15 2:10 ` Eric W. Biederman
2006-05-02 16:38 ` Jon Smirl
2006-05-02 16:45 ` Arjan van de Ven
2006-05-02 16:59 ` Jon Smirl
2006-05-02 17:00 ` Arjan van de Ven
2006-05-02 17:13 ` Jon Smirl
2006-05-02 18:27 ` Arjan van de Ven
2006-05-02 19:00 ` Jon Smirl
2006-05-02 19:29 ` Peter Jones
2006-05-02 21:40 ` Dave Airlie
2006-05-02 21:52 ` Jon Smirl
2006-05-02 23:36 ` Dave Airlie
2006-05-03 0:19 ` Matthew Wilcox
2006-05-03 0:26 ` Valdis.Kletnieks
2006-05-03 1:24 ` Jon Smirl
2006-05-03 1:30 ` Dave Airlie
2006-05-03 6:02 ` Arjan van de Ven
2006-05-03 13:23 ` Jon Smirl
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