Re: Handling custom device control requests in userspace

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Hi,

Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> writes:
> On 06.04.2018 12:18, Felipe Balbi wrote:
>> 
>> Hi,
>> 
>> Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> writes:
>> 
>> <snip>
>> 
>>>>> A few advantages over a couple options I've considered are that this mostly
>>>>> reuses existing functionalities and won't affect users that haven't enabled
>>>>> it. Please let me know of any feedback on the design or any possible
>>>>> implementation issues.
>>>>
>>>> IMHO, considering the amount of Android users, we can merge this into
>>>> composite.c itself. Just make the code depend on CONFIG_ANDROID. Or
>>>> something along the lines of
>>>>
>>>> if (IS_ENABLED(CONFIG_ANDROID))
>>>> 	android_audio_accessory_init();
>>>>
>>>> should get the job done.
>>>
>>> Huh and what with people that are not android but need to support
>>> Android accessory in their products?
>> 
>> Do those really exist?
>> 
>> Well, if they _really_ exist, we can add a "Enable Support for Android
>> Audio Accessory" specific to the gadget framework. Then test for:
>> 
>> if (IS_ENABLED(CONFIG_USB_GADGET_ANDROID_AUDIO_ACCESSORY))
>> 
>> or whatever. I'm not certain such devices exist though, need
>> confirmation.
>> 
>
> Yes, they exist. Most of Tizen phones support android accessory.

Fair enough. A specific Kconfig for that is okay.

Jerry, do you wanna write the patch for this or would you prefer giving
me some requirements?

-- 
balbi

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