linux-kernel - Re: [PATCH resend] spi core: Provide means to instantiate devices through sysfs

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Message-ID: <20120922161133.GU4495@opensource.wolfsonmicro.com>
Date:	Sat, 22 Sep 2012 12:11:33 -0400
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	spi-devel-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH resend] spi core: Provide means to instantiate devices
 through sysfs

On Mon, Sep 17, 2012 at 04:51:20PM -0700, Guenter Roeck wrote:
> The I2C core provides a means to instantiate devices from userspace
> using sysfs attributes. Provide the same mechanism for SPI devices.

So, unlike I2C this is only going to work for a subset of controllers -
anything that relies on GPIOs for chip select will need more data to add
the chip selects for example.  This means I'm having a hard time getting
enthused about the idea, it seems like it might be a support burden.
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