Re: [PATCH 1/2] usb: configfs: allow UDC binding rule configured as binding to *any* UDC

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On 05/06/2016 04:46 AM, Du, Changbin wrote:
(...)
>> Well, I'm not sure if any configfs interface has been proposed as easy
>> to use from cmd line. I think they all has been proposed as  *usable*
>> from cmd line but not necessarily *easy to use*.
>>
>> That's why most of configfs clients has some support in userspace. For
>> example for target there is a taget-cli and for usb gadget we have
>> libusbg/libusbgx.
>>
> Glade to know this tool, it is much more easy to use than interact with sysfs.
> I'd like use it. Just see you are the main contributor of this project. :)
> 

That's true;) personally I would recommend you using libusbgx[1] instead
of libusbg[2] as it is far more recent and usable (292 commits vs 128;) )

(...)

>>
>> What do you mean pseudo 'busy'? If we do:
>>
>> echo <udc-name> > UDC
>>
> Sorry, please ignore this. I find if no UDC available, the config will be queued
> to a list, and will bind it when a UDC module install. So it is really busy.
> 
>> then gadget should be really bound to some udc and potentially really busy.
>>
>>> In a word, this patch is just an improvement, not to fix any issues or
>>> add new function.
>>
>> So it doesn't add any new functionality and breaks existing user space
>> tools.
>>

Yes, currently it's true but it's a bug which I have fixed yesterday[3]

Footnotes:
1 - https://github.com/libusbgx/libusbgx
2 - https://github.com/libusbg/libusbg
3 - http://marc.info/?l=linux-usb&m=146243801207458&w=2

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