Re: [RFC PATCH] usb: gadget: composite: Provide list of registered functions

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On Mon, Oct 20, 2014 at 01:41:37PM +0200, Krzysztof Opasiak wrote:
> Driver which provides implementation of some USB functions
> registers its usb_function_driver structure in framework.
> Function drivers are identifed using registered name.
> 
> When gadget is composed user must know what names has been

"user *must" know", why ?

> registered. If function is compiled as a module this
> information can be found in modules.alias file. But if
> function is compiled-in, there is no way to discover what
> functions are available in currently running kernel.
> 
> Such situation is nothing new for linux kernel.
> Similar situation is with file systems. While mounting user
> can provide an fs type using -t option in mount. Those type
> names are registered by drivers. To make those names
> discoverable there is a proc fs attribute filesystems which
> exports the fils of currently registered file systems.
> 
> This patch adds proc fs attribute which exports the list
> of currently registered function drivers. This allows user
> to discover list of both compiled-in functions and
> from loaded kernel modules.

ugh, new procfs files. Thanks, but no thanks.

Also, I thought Sebastian had explained to you that Target framework
does not provide any list of any sorts.

-- 
balbi

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