[alsa-devel] (no subject)

[Clemens Ladisch]

郝舜 wrote:
> I'm confused by a problem when i modify a test application "alsa-lib-1.0.13/test/control.c".
> I wanna use the structure "snd_ctl_elem_value_t",but when i write like this:
>        snd_ctl_elem_value_t aaa;
> there will be an error:
> ...
> I think i should use the function like "snd_ctl_elem_info_set_id",

Yes.

> but i just want to know why,i don't think it disobeys the C syntax.

These structures are only defined internally in alsa-lib and are not
exported.  It was made this way to make the library binary compatible
with future versions where the layout of these structures may change.


HTH
Clemens