linux-kernel - Re: [PATCH 1/2] usb: gadget: udc-core: independent registration of gadgets and gadget drivers

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Message-ID: <CAB=otbS=hb1Vd1+W-BXPS+B_MP_-5vpo_hSLTiSK7=92QPj4pg@mail.gmail.com>
Date:	Tue, 17 Feb 2015 23:02:32 +0200
From:	Ruslan Bilovol <ruslan.bilovol@...il.com>
To:	Andrzej Pietrasiewicz <andrzej.p@...sung.com>
Cc:	Krzysztof Opasiak <k.opasiak@...sung.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Peter Chen <peter.chen@...escale.com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Balbi, Felipe" <balbi@...com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 1/2] usb: gadget: udc-core: independent registration of
 gadgets and gadget drivers

Hi Andrzej,

On Mon, Feb 16, 2015 at 10:07 AM, Andrzej Pietrasiewicz
<andrzej.p@...sung.com> wrote:
> W dniu 15.02.2015 o 23:43, Ruslan Bilovol pisze:
>
> <snip>
>
>>>
>>> In my opinion all things which you have described are working out-of-box
>>> when you use configfs interface. It's mostly ready so you may create
>>> equivalent of most legacy gadgets (apart from printer and tcm) and
>>> just bind from one udc to another whenever you want.
>>
>>
>> It's because legacy gadgets are easy to use and usually don't need any
>> userspace-side configuration. Are there any plans to remove legacy
>> drivers in the future?
>>
>
> I'm not going to express strong opinions here, but their name implies
> that this can happen, some time in the future.
>
> And I also think it will not happen before the userspace part
> (libusbg, gt, gadgetd etc) is mature enough. My personal opinion
> in that matter is that it will take at least a couple of years
> to remove legacy gadgets entirely.

OK, so it looks like there is a sense even to add new gadget/functions
with legacy support

Thanks,
Ruslan

>
> AP
>
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