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From: Greg KH <greg@kroah.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: michael.hennerich@analog.com, jic23@cam.ac.uk,
	linux-iio@vger.kernel.org, drivers@analog.com,
	device-drivers-devel@blackfin.uclinux.org
Subject: Re: [PATCH] IIO: TRIGGER: New sysfs based trigger
Date: Wed, 2 Feb 2011 12:26:41 -0800	[thread overview]
Message-ID: <20110202202641.GA28479@kroah.com> (raw)
In-Reply-To: <20110202195001.GH9810@sirena.org.uk>

On Wed, Feb 02, 2011 at 07:50:01PM +0000, Mark Brown wrote:
> On Wed, Feb 02, 2011 at 11:43:18AM -0800, Greg KH wrote:
> > On Wed, Feb 02, 2011 at 08:21:08PM +0100, michael.hennerich@analog.com wrote:
> 
> > > +static struct platform_driver iio_sysfs_trigger_driver = {
> > > +	.driver = {
> > > +		.name = "iio_sysfs_trigger",
> > > +		.owner = THIS_MODULE,
> > > +	},
> > > +	.probe = iio_sysfs_trigger_probe,
> > > +	.remove = __devexit_p(iio_sysfs_trigger_remove),
> > > +};
> 
> > Why is this a platform device?  It doesn't seem to be platform specific
> > at all, does it?
> 
> Platform devices are used throughout the embedded kernel for virtual
> devices

Yes, but that doesn't mean they should be.

> - the MFD subsystem is one of the most obvious examples here.

Don't make a device a "platform" device unless it really is one.  This
one isn't one, it's a "virtual" device, right?

thanks,

greg k-h

  reply	other threads:[~2011-02-02 20:26 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-02 19:21 [PATCH] IIO: TRIGGER: New sysfs based trigger michael.hennerich
2011-02-02 19:42 ` Greg KH
2011-02-02 19:55   ` Hennerich, Michael
2011-02-02 20:27     ` Greg KH
2011-02-02 20:36   ` Hennerich, Michael
2011-02-02 20:47     ` Mark Brown
2011-02-02 20:58     ` Greg KH
2011-02-03  9:58       ` Hennerich, Michael
2011-02-03 17:13         ` Greg KH
2011-02-04  8:38           ` Hennerich, Michael
2011-02-04 10:51             ` Jonathan Cameron
2011-02-04 14:55             ` Greg KH
2011-02-04 15:27               ` Jonathan Cameron
2011-02-04 15:34               ` Hennerich, Michael
2011-02-04 15:44                 ` Jonathan Cameron
2011-02-02 19:43 ` Greg KH
2011-02-02 19:50   ` Mark Brown
2011-02-02 20:26     ` Greg KH [this message]
2011-02-02 20:31       ` Mark Brown
2011-02-02 20:48         ` Greg KH
2011-02-02 20:13   ` Hennerich, Michael
2011-02-02 20:29     ` Greg KH
  -- strict thread matches above, loose matches on Subject: below --
2011-02-07 10:05 michael.hennerich
2011-02-03 10:10 michael.hennerich
2011-02-02 13:30 michael.hennerich
2011-02-02 18:22 ` Jonathan Cameron
2011-02-02 19:21   ` Hennerich, Michael
2011-02-03 10:13     ` Jonathan Cameron

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