[alsa-devel] [PATCH v7 06/13] slimbus: Add messaging APIs to slimbus framework

[Srinivas Kandagatla]

On 27/11/17 05:56, Vinod Koul wrote:
> On Mon, Nov 20, 2017 at 06:47:52AM +0000, Srinivas Kandagatla wrote:
> 
>>>> + *	-ENOTCONN: If the transmitted message was not ACKed by destination
>>>> + *	device.
>>>
>>> I am preferring ENODATA in SDW for this case, as Slaves didnt respond or
>>> ACK.
>> Isn't that a timeout error then.
>>
>> ENODATA is for "No data available", reporting ENODATA would be misleading.
> 
> Do you get a explict NACK or no response for this

There is no response for the request, currently code waits for it arrive 
and then timesout on completion.