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

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Message-ID: <alpine.DEB.2.02.1501091302370.30067@linuxheads99>
Date:	Fri, 9 Jan 2015 13:14:24 -0600
From:	atull <atull@...nsource.altera.com>
To:	Pavel Machek <pavel@...x.de>
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Subject: Re: [PATCH v8 2/4] fpga manager: add sysfs interface document

On Wed, 7 Jan 2015, Pavel Machek wrote:

> On Tue 2015-01-06 14:13:37, atull@...nsource.altera.com wrote:
> > +
> > +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

Hi Pavel,

It might be ugly.  It's not unnecessary.  Some uses of FPGAs involve
switching out the FPGA images dynamically under control of the userspace.

Alan
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