diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-11-11 09:34:25 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-11 09:37:08 +0100 |
| commit | a2f6309e8392e2c14c04594fca8b4876c8c9bc36 (patch) | |
| tree | 78db71701660196181768b898bcc80db8bc10009 /sound/pci/hda/hda_local.h | |
| parent | 8f217a226cfa7b960b8a6c00cef6b4de2c5dd030 (diff) | |
ALSA: hda - Add power on/off counter
Added the power on/off counter and expose via sysfs files.
The sysfs files, power_on_acct and power_off_acct, are created under
each codec hwdep sysfs directory (e.g. /sys/class/sound/hwC0D0).
The files show the msec length of the codec power-on and power-off,
respectively.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_local.h')
| -rw-r--r-- | sound/pci/hda/hda_local.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 461e0c15c77a..015fbac914b3 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -437,6 +437,15 @@ int snd_hda_create_hwdep(struct hda_codec *codec); static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; } #endif +#ifdef CONFIG_SND_HDA_POWER_SAVE +int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec); +#else +static inline int snd_hda_hwdep_add_power_sysfs(struct hda_codec *codec) +{ + return 0; +} +#endif + #ifdef CONFIG_SND_HDA_RECONFIG int snd_hda_hwdep_add_sysfs(struct hda_codec *codec); #else |