config SND_HDA_CORE tristate select REGMAP config SND_HDA_DSP_LOADER bool config SND_HDA_COMPONENT bool config SND_HDA_I915 bool select SND_HDA_COMPONENT config SND_HDA_EXT_CORE tristate select SND_HDA_CORE config SND_HDA_PREALLOC_SIZE int "Pre-allocated buffer size for HD-audio driver" range 0 32768 default 64 help Specifies the default pre-allocated buffer-size in kB for the HD-audio driver. A larger buffer (e.g. 2048) is preferred for systems using PulseAudio. The default 64 is chosen just for compatibility reasons. Note that the pre-allocation size can be changed dynamically via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.