Specifying supported hw params (channels, format, etc.) by the plug plugin in alsa config?

[Pavel Hofman <pavel.hofman@xxxxxxxxxxx>]

Hi,

Please is it possible to restrict the hw params space for the plug
plugin by some alsa configuration, so that it reports/accepts only a
specific number of channels/specific sample format? I was not able to
figure it out, I apologize if it's trivial :-)

Thanks a lot.

With regards,

Pavel.