From: john slee <indigoid@higherplane.net>
To: Matthias Urlichs <smurf@noris.de>
Cc: "Dmitry A. Fedorov" <D.A.Fedorov@inp.nsk.su>,
Balbir Singh <balbir_soni@yahoo.com>,
linux-kernel@vger.kernel.org
Subject: Re: Is it useful to support user level drivers
Date: Fri, 22 Jun 2001 00:21:26 +1000 [thread overview]
Message-ID: <20010622002126.K30872@higherplane.net> (raw)
In-Reply-To: <p05100304b757adbbacd1@[10.2.6.42]>
On Thu, Jun 21, 2001 at 03:58:33PM +0200, Matthias Urlichs wrote:
> At 23:50 +1000 2001-06-21, john slee wrote:
> >i believe libgpio uses the existing usb/iee1394/serial/parallel
> >interfaces to provide a limited userspace driver capability.
>
> That only means, however, that the specific kernel drivers explicitly
> support mid-level usermode access.
>
> They still handle the actual hardware state changes without usermode support.
yes, that was the point. while it might be a stretch of the "mechanism,
not policy" argument, i like having drivers organized this way. it
makes a lot of sense for hotpluggable things like usb.
j.
--
"Bobby, jiggle Grandpa's rat so it looks alive, please" -- gary larson
next prev parent reply other threads:[~2001-06-21 14:05 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-21 10:41 Is it useful to support user level drivers Balbir Singh
2001-06-21 10:55 ` Tim Waugh
2001-06-21 11:04 ` Alan Cox
2001-06-21 12:43 ` Balbir Singh
2001-06-21 13:27 ` Alan Cox
2001-06-28 22:52 ` Pavel Machek
2001-06-21 12:45 ` Dmitry A. Fedorov
2001-06-21 13:24 ` Oliver Neukum
2001-06-21 14:46 ` Dmitry A. Fedorov
2001-06-21 15:19 ` Oliver Neukum
2001-06-22 4:19 ` Dmitry A. Fedorov
2001-06-22 7:28 ` Balbir Singh
2001-06-21 16:34 ` Abramo Bagnara
2001-06-21 17:27 ` Alan Cox
2001-06-21 19:59 ` Abramo Bagnara
2001-06-21 20:40 ` Richard B. Johnson
2001-06-21 20:54 ` Abramo Bagnara
2001-06-21 21:09 ` Oliver Neukum
2001-06-28 22:57 ` Pavel Machek
2001-06-21 13:28 ` Alan Cox
2001-06-21 14:03 ` Matthias Urlichs
2001-06-28 22:54 ` Pavel Machek
2001-06-21 14:20 ` Dmitry A. Fedorov
2001-06-21 11:38 ` Dmitry A. Fedorov
2001-06-21 13:50 ` john slee
2001-06-21 13:58 ` Matthias Urlichs
2001-06-21 14:21 ` john slee [this message]
2001-06-28 22:51 ` Pavel Machek
[not found] <mailman.993156181.18994.linux-kernel2news@redhat.com>
2001-06-21 22:06 ` Pete Zaitcev
2001-06-21 22:20 ` David S. Miller
2001-06-21 23:09 ` Mike Mackovitch
2001-06-21 23:22 ` David S. Miller
2001-06-21 23:50 ` Mike Mackovitch
2001-06-22 0:36 ` David S. Miller
2001-06-21 23:40 ` Richard B. Johnson
2001-06-22 0:30 ` Anders Larsen
2001-06-22 0:43 ` Richard B. Johnson
2001-06-25 0:06 ` Anders Larsen
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