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| author | Takashi Iwai <tiwai@suse.de> | 2008-11-21 11:26:20 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-11-21 11:26:20 +0300 |
| commit | e7ee058cac89ec2f2c0c9ab0ec92a3776c182642 (patch) | |
| tree | 2d092e35b11ef997c30b661bd3f82aa1fb797b90 | |
| parent | f208dba97f2f3ff2fbcbe771195061e2a0dac870 (diff) | |
| download | linux-e7ee058cac89ec2f2c0c9ab0ec92a3776c182642.tar.xz | |
ALSA: hda - Make CONFIG_SND_HDA_RECONFIG for codec reconfiguration
Make the codec re-configuration feature selectable via Kconfig,
CONFIG_SND_HDA_RECONFIG.
Also mark it as experimental (as it really is).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/Kconfig | 9 | ||||
| -rw-r--r-- | sound/pci/hda/hda_hwdep.c | 4 | ||||
| -rw-r--r-- | sound/pci/hda/hda_local.h | 10 |
3 files changed, 22 insertions, 1 deletions
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index 157a0a6b10ae..cc6cf89c32e6 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -518,6 +518,15 @@ config SND_HDA_HWDEP This interface can be used for out-of-band communication with codecs for debugging purposes. +config SND_HDA_RECONFIG + bool "Allow dynamic codec reconfiguration (EXPERIMENTAL)" + depends on SND_HDA_HWDEP && EXPERIMENTAL + help + Say Y here to enable the HD-audio codec re-configuration feature. + This adds the sysfs interfaces to allow user to clear the whole + codec configuration, change the codec setup, add extra verbs, + and re-configure the codec dynamically. + config SND_HDA_INPUT_BEEP bool "Support digital beep via input layer" depends on SND_HDA_INTEL diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index 653da1d3e4df..5868bbc131cd 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -145,6 +145,8 @@ int __devinit snd_hda_create_hwdep(struct hda_codec *codec) return 0; } +#ifdef CONFIG_SND_HDA_RECONFIG + /* * sysfs interface */ @@ -347,3 +349,5 @@ int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) hwdep->device, &codec_attrs[i]); return 0; } + +#endif /* CONFIG_SND_HDA_RECONFIG */ diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index bf7ba8b62973..6f2fe0f9fdd8 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -409,11 +409,19 @@ void snd_hda_ctls_clear(struct hda_codec *codec); */ #ifdef CONFIG_SND_HDA_HWDEP int snd_hda_create_hwdep(struct hda_codec *codec); -int snd_hda_hwdep_add_sysfs(struct hda_codec *codec); #else static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; } #endif +#ifdef CONFIG_SND_HDA_RECONFIG +int snd_hda_hwdep_add_sysfs(struct hda_codec *codec); +#else +static inline int snd_hda_hwdep_add_sysfs(struct hda_codec *codec) +{ + return 0; +} +#endif + /* * power-management */ |