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From: Greg KH <gregkh@linuxfoundation.org>
To: Oliver Neukum <oneukum@suse.de>
Cc: Stefani Seibold <stefani@seibold.net>,
	linux-kernel@vger.kernel.org,
	thomas.braunstorfinger@rohde-schwarz.com
Subject: Re: [PATCH] add new NRP power meter USB device driver
Date: Thu, 31 May 2012 20:04:11 +0800	[thread overview]
Message-ID: <20120531120411.GA4859@kroah.com> (raw)
In-Reply-To: <201205311217.11692.oneukum@suse.de>

On Thu, May 31, 2012 at 12:17:11PM +0200, Oliver Neukum wrote:
> Am Donnerstag, 31. Mai 2012, 11:53:04 schrieb Greg KH:
> > > So it is a chicken and egg problem. A lot of software is now out with
> > > depends on this driver and a lot of embedded development environments
> > > doesn't provide libudev, libsysfs und libusb. It will also increase the
> > > size of the image and adds additional dependencies to the application.
> > 
> > You don't need any of those libraries to do this.  What's wrong with
> > using "raw" usbfs interactions?
> 
> SPI is not limited to USB. If we can get a unified subsystem then the
> drivers need to be in kernel space, as some hardware does not allow
> a solution in user space.

Ok, now that is a valid reason for a kernel driver.

But, I think it should use the IIO interface, as that should handle
these types of devices.

thanks,

greg k-h

  reply	other threads:[~2012-05-31 12:04 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-29 19:14 [PATCH] add new NRP power meter USB device driver stefani
2012-05-29 23:15 ` Greg KH
2012-05-31  8:47   ` Stefani Seibold
2012-05-31  9:41     ` Greg KH
2012-06-02  7:10       ` Stefani Seibold
2012-06-02 12:10         ` Greg KH
2012-06-02 15:43           ` Stefani Seibold
2012-05-31  9:53     ` Greg KH
2012-05-31 10:17       ` Oliver Neukum
2012-05-31 12:04         ` Greg KH [this message]
2012-05-31 12:32           ` Oliver Neukum
2012-05-31 12:48             ` Greg KH
2012-05-31 14:22               ` Oliver Neukum
2012-05-31 14:32                 ` Greg KH
2012-06-01 13:38                   ` Oliver Neukum
2012-05-30  8:10 ` Oliver Neukum
2012-05-31  7:43   ` Stefani Seibold
2012-05-31  8:20     ` Oliver Neukum
2012-05-31  9:21       ` Stefani Seibold
2012-06-01 14:16         ` Oliver Neukum
2012-06-01 14:34           ` Alan Cox
2012-06-02  5:57           ` Stefani Seibold
  -- strict thread matches above, loose matches on Subject: below --
2012-06-02 16:18 stefani
2012-06-02 20:24 ` Oliver Neukum
2012-06-03  5:15   ` Stefani Seibold
2012-06-03  8:46 stefani
2012-06-03 11:48 ` Joe Perches
2012-06-13  0:58 ` Greg KH

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