From: Jiri Slaby <jirislaby@gmail.com>
To: Bryan Wu <cooloney.lkml@gmail.com>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>,
Bryan Wu <bryan.wu@analog.com>,
linux-kernel@vger.kernel.org,
Mike Frysinger <michael.frysinger@analog.com>
Subject: Re: [PATCH 1/1] [Blackfin] char driver for Blackfin on-chip OTP memory
Date: Wed, 30 Jan 2008 14:43:57 +0100 [thread overview]
Message-ID: <47A07F1D.9000208@gmail.com> (raw)
In-Reply-To: <386072610801300515j56d10f2ej55859500c91befbb@mail.gmail.com>
On 01/30/2008 02:15 PM, Bryan Wu wrote:
> And one question for Jiri, what is the difference between misc char
> driver with other char drivers.
No difference in behaviour. Open function in misc replaces fops by your
specified one (like a v4l or tty layer, or chrdev_open aswell, which will be
called on each character device open).
> Because we got some other char drivers locally, maybe some day send them out.
Misc has one predefined major and is used for such uses, in which you need only
one minor number. The point is not to block resting 254 minors of one major just
for only one minor used.
next prev parent reply other threads:[~2008-01-30 13:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 10:36 [PATCH 1/1] [Blackfin] char driver for Blackfin on-chip OTP memory Bryan Wu
2008-01-30 11:00 ` Jiri Slaby
2008-01-30 12:39 ` Robin Getz
2008-01-30 13:08 ` Jiri Slaby
2008-01-30 13:15 ` Bryan Wu
2008-01-30 13:43 ` Jiri Slaby [this message]
2008-01-30 13:53 ` Jiri Slaby
2008-01-30 13:19 ` Mike Frysinger
2008-01-30 13:38 ` Jiri Slaby
2008-01-30 13:41 ` Mike Frysinger
2008-02-05 18:59 ` Mike Frysinger
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