[alsa-devel] [PATCH] ALSA: hda - print power state for AFG node in proc file

[Takashi Iwai]

At Tue,  8 Jan 2013 15:01:18 +0100,
David Henningsson wrote:
> 
> It seems useful, and power states are required for AFG nodes,
> so I see no reason not to print it.

Hmm...  when the codec proc file is output, the codec gets awake.
So it should print only D0 there.  Or did you get other power state?

> As a bonus, also print the
> AFG nid.

Yeah, this is a good thing.


thanks,

Takashi

> Signed-off-by: David Henningsson <david.henningsson at canonical.com>
> ---
>  sound/pci/hda/hda_proc.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> (Feel free to rephrase "State of AFG node 0x%02x:\n" if you like.)
> 
> diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
> index 045e5d3..d6c8416 100644
> --- a/sound/pci/hda/hda_proc.c
> +++ b/sound/pci/hda/hda_proc.c
> @@ -603,6 +603,8 @@ static void print_codec_info(struct snd_info_entry *entry,
>  	print_amp_caps(buffer, codec, codec->afg, HDA_INPUT);
>  	snd_iprintf(buffer, "Default Amp-Out caps: ");
>  	print_amp_caps(buffer, codec, codec->afg, HDA_OUTPUT);
> +	snd_iprintf(buffer, "State of AFG node 0x%02x:\n", codec->afg);
> +	print_power_state(buffer, codec, codec->afg);
>  
>  	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
>  	if (! nid || nodes < 0) {
> -- 
> 1.7.9.5
>