[alsa-devel] [PATCH] Allow mux to have up to 256 sources. Log warning and return index 0 rather than error if DSP returns invalid value. (amixer fails if error returned on get)

[Takashi Iwai]

At Fri, 05 Feb 2010 12:50:40 +1300,
linux at audioscience.com wrote:
> 
> From: Eliot Blennerhassett <eblennerhassett at audioscience.com>
> 
> Signed-off-by: Eliot Blennerhassett <eblennerhassett at audioscience.com>

Thanks, applied now.


Takashi

> ---
>  pci/asihpi/asihpi.c |    7 +++++--
>  1 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/pci/asihpi/asihpi.c b/pci/asihpi/asihpi.c
> index 0c7b4fb..4f82e9f 100644
> --- a/pci/asihpi/asihpi.c
> +++ b/pci/asihpi/asihpi.c
> @@ -2187,7 +2187,7 @@ static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
>  	HPI_HandleError(HPI_Multiplexer_GetSource(phSubSys, hControl,
>  				&wSourceType, &wSourceIndex));
>  	/* Should cache this search result! */
> -	for (s = 0; s < 16; s++) {
> +	for (s = 0; s < 256; s++) {
>  		if (HPI_Multiplexer_QuerySource(phSubSys, hControl, s,
>  					    &wSrcNodeType, &wSrcNodeIndex))
>  			break;
> @@ -2198,7 +2198,10 @@ static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
>  			return 0;
>  		}
>  	}
> -	return -EINVAL;
> +	snd_printd(KERN_WARNING "Control %x failed to match mux source %hu %hu\n",
> +			hControl, wSourceType, wSourceIndex);
> +	ucontrol->value.enumerated.item[0] = 0;
> +	return 0;
>  }
>  
>  static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
> -- 
> 1.7.0.rc0.8.ge3f67d
>