Re: Replace audio(9) get_props() with duplex check in open() for record-only drivers

[Alexandre Ratchov]

On Thu, Oct 27, 2022 at 01:09:57PM +0000, Klemens Nanni wrote:
> @@ -1859,6 +1857,9 @@ utvfu_audio_open(void *v, int flags)
>       if (usbd_is_dying(sc->sc_udev))
>               return (EIO);
>  
> +     if ((flags & (FWRITE | FREAD)))
> +             return (ENXIO);
> +
>       if ((flags & FWRITE))
>               return (ENXIO);
>  

We already return ENXIO if playback is requested, so no need for the
additional full-duplex check