From: Greg KH <gregkh@suse.de>
To: Chris Metcalf <cmetcalf@tilera.com>
Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Eric Biederman <ebiederm@aristanetworks.com>,
Chris Wright <chrisw@sous-sol.org>,
Benjamin Thery <benjamin.thery@bull.net>,
Phil Carmody <ext-phil.2.carmody@nokia.com>
Subject: Re: [PATCH v2] arch/tile: add hypervisor-based character driver for SPI flash ROM
Date: Sun, 29 May 2011 21:47:45 +0800 [thread overview]
Message-ID: <20110529134745.GA26524@suse.de> (raw)
In-Reply-To: <4DE2399C.9090500@tilera.com>
On Sun, May 29, 2011 at 08:18:36AM -0400, Chris Metcalf wrote:
> >> Is there a good example of a character device that has multiple minors and
> >> also is registered with sysfs?
> > Lots of them, look all over the kernel, and in LDD3 there's even an
> > outdated example of one I think.
>
> I didn't actually find many drivers that have both cdev_add with count>1,
> and mention sysfs or kobj, but char/raw.c is one that looks pretty clean.
> (I found only four others total: uio/uio.c, s390/char/vmlogrdr.c,
> staging/comedi/comedi_fops.c, and staging/vme/devices/vme_user.c.)
No, you don't need "raw" kobjects or sysfs at all. Just use the
device_create() call.
Hope this helps,
greg k-h
next prev parent reply other threads:[~2011-05-29 13:46 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-04 19:10 [PATCH] arch/tile: add arch/tile/drivers/ directory with SROM driver Chris Metcalf
2011-05-05 6:41 ` Arnd Bergmann
2011-05-06 19:37 ` Chris Metcalf
2011-05-20 18:05 ` Chris Metcalf
2011-05-20 18:46 ` Arnd Bergmann
2011-05-20 22:40 ` Eric Biederman
2011-05-20 23:39 ` Chris Metcalf
2011-05-21 3:21 ` Greg KH
2011-05-21 9:33 ` Arnd Bergmann
2011-05-21 13:52 ` Chris Metcalf
2011-05-21 15:02 ` Arnd Bergmann
2011-05-21 15:31 ` Chris Metcalf
2011-05-21 15:50 ` Eric Biederman
2011-05-23 20:10 ` Chris Metcalf
2011-05-28 15:13 ` [PATCH v2] arch/tile: add hypervisor-based character driver for SPI flash ROM Chris Metcalf
2011-05-28 21:23 ` Greg KH
2011-05-29 0:32 ` Chris Metcalf
2011-05-29 11:45 ` Greg KH
2011-05-29 12:18 ` Chris Metcalf
2011-05-29 13:47 ` Greg KH [this message]
2011-05-29 15:45 ` Arnd Bergmann
2011-05-29 18:23 ` Chris Metcalf
2011-06-02 15:04 ` [PATCH v3] " Chris Metcalf
2011-06-10 16:41 ` Arnd Bergmann
2011-05-21 7:46 ` [PATCH] arch/tile: add arch/tile/drivers/ directory with SROM driver Eric Biederman
2011-05-21 8:32 ` Arnd Bergmann
2011-05-22 0:54 ` Mike Frysinger
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