Subject: Re: [PATCH 3/5] usb: gadget: gmidi: remove bus powered requirement on
 bmAttributes
To: Felipe Ferreri Tonello <eu@felipetonello.com>,
        Felipe Balbi <balbi@kernel.org>, linux-usb@vger.kernel.org
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Cc: linux-kernel@vger.kernel.org, Michal Nazarewicz <mina86@mina86.com>,
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From: Krzysztof Opasiak <k.opasiak@samsung.com>
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Date: Tue, 08 Mar 2016 15:15:29 +0100
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On 03/08/2016 02:54 PM, Felipe Ferreri Tonello wrote:
 (...)

>>
>>> sort of preset library of configfs-based gadget drivers, we still need
>>> these modules.
>>
>> there is already a library called libusbg.
> 
> By preset library I meant scripts or little programs that implement the
> legacy drivers we have.
> 

libusbgx implements an idea of gadget schemes[1]. That's simple
configuration files using libconfig syntax. I don't see any problems to
use it to create legacy gadget equivalents. Then you could simply load
it using usbg_import_gadget() in C code or gt[2] load from shell.

Footnotes:
1 - https://github.com/libusbgx/libusbgx/blob/master/doc/gadget_schemes.txt
2 - https://github.com/kopasiak/gt

Cheers,
-- 
Krzysztof Opasiak
Samsung R&D Institute Poland
Samsung Electronics