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CONFIG_SND_HDA_PREALLOC_SIZE: Pre-allocated buffer size for HD-audio driver

General informations

The Linux kernel configuration item CONFIG_SND_HDA_PREALLOC_SIZE:

• prompt: Pre-allocated buffer size for HD-audio driver
• type: int
• depends on: (none)
• defined in sound/pci/hda/Kconfig
• found in Linux kernels: 3.1–3.9, 3.10-rc+HEAD

Help text

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.

Hardware

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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