Re: configfs hierarchy (WAS: Re: [RFCv4 PATCH 02/13] usb: gadget: Add USB Functions Gadget)

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> On Mon, 26 Nov 2012, Sebastian Andrzej Siewior wrote:
>> Step two is a folder where we setup individual configuration of a function.
>> 
>> /functions/ttyS0
>> /functions/ttyS1
>> /functions/storage
>> 
>> each one of the function folder has the file called "name". So for the
>> folder ttyS0 the file name contains "acm" because we use the ACM
>> function. The same is true for ttyS1 and for storage we write
>> "mass_storage" if that is what function will be called.

On Mon, Nov 26 2012, Alan Stern wrote:
> Is there really any significant configuration to be done at this level?  
> I would expect functions to be written so that different settings can 
> be applied to different instances.
>
> For example, if a config had two mass-storage interfaces, they should 
> be configurable separately.  There should be very little, or nothing, 
> that would apply across all the instances.

In Sebastian's example, those are the instances which are attached to
gadgets.  A “pure” function has no representation.

-- 
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.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
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