sw_params for a direct-ed(dmix) hw pcm

[sylvain.bertrand at gmail.com]

On Tue, Apr 14, 2020 at 05:18:27PM +0200, Takashi Iwai wrote:
> If the patch worked for you, basically it's OK to accept.

I did not manage to make it fail. But I found another and unrelated issue, see
github #41 and the patch attempt I did post on the mailing list earlier.

> So, could you post the proper patch for the merge?

I'll try to format that properly.

-- 
Sylvain