linux-kernel - Re: [PATCH v8 2/4] fpga manager: add sysfs interface document

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Date:	Wed, 7 Jan 2015 09:48:19 +0100
From:	Pavel Machek <pavel@...x.de>
To:	atull@...nsource.altera.com
Cc:	gregkh@...uxfoundation.org, jgunthorpe@...idianresearch.com,
	hpa@...or.com, monstr@...str.eu, michal.simek@...inx.com,
	rdunlap@...radead.org, linux-kernel@...r.kernel.org,
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	robh+dt@...nel.org, grant.likely@...aro.org, iws@...o.caltech.edu,
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	dinguyen@...nsource.altera.com, yvanderv@...nsource.altera.com
Subject: Re: [PATCH v8 2/4] fpga manager: add sysfs interface document

On Tue 2015-01-06 14:13:37, atull@...nsource.altera.com wrote:
> From: Alan Tull <atull@...nsource.altera.com>
> 
> Add documentation under drivers/staging for new fpga manager's
> sysfs interface.
> 
> Signed-off-by: Alan Tull <atull@...nsource.altera.com>
> ---
> v5  : (actually second version, but keeping version numbers
>       aligned with rest of patch series)
>       Move document to drivers/staging/fpga/Documentation/ABI
> 
> v6  : No change in this patch for v6 of the patch set
> 
> v7  : No change in this patch for v7 of the patch set
> 
> v8  : No change in this patch for v8 of the patch set
> ---
>  .../Documentation/ABI/sysfs-class-fpga-manager     |   38 ++++++++++++++++++++
>  1 file changed, 38 insertions(+)
>  create mode 100644 drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager
> 
> diff --git a/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager b/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager
> new file mode 100644
> index 0000000..eb600f2
> --- /dev/null
> +++ b/drivers/staging/fpga/Documentation/ABI/sysfs-class-fpga-manager
> @@ -0,0 +1,38 @@
> +What:		/sys/class/fpga_manager/<fpga>/name
> +Date:		October 2014
> +KernelVersion:	3.18
> +Contact:	Alan Tull <atull@...nsource.altera.com>
> +Description:	Name of low level driver.
> +
> +What:		/sys/class/fpga_manager/<fpga>/firmware
> +Date:		October 2014
> +KernelVersion:	3.18
> +Contact:	Alan Tull <atull@...nsource.altera.com>
> +Description:	Name of the FPGA image file to load using firmware
> class.

This one is ugly: it unneccessarily passes firmware name through the
kernel. Just make interface and code simpler by always passing
"socfpga-fpga-image" or something like that.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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