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authorVinod Koul <vinod.koul@intel.com>2015-06-16 21:00:22 +0530
committerTakashi Iwai <tiwai@suse.de>2015-06-16 17:40:38 +0200
commitd39513f85163e202a44283856286fabb6902f2e0 (patch)
treeeb9d45e6681548e741887ff0f6855df1c6e20746 /sound/hda
parent0b2d71175990629f11189f5df98cc0c26ae61993 (diff)
downloadop-kernel-dev-d39513f85163e202a44283856286fabb6902f2e0.zip
op-kernel-dev-d39513f85163e202a44283856286fabb6902f2e0.tar.gz
ALSA: HDAC: move SND_HDA_PREALLOC_SIZE to core
Since this is common option for HDA driver to specfiy pre-allocated buffer, we should make this option availble to all HDA driver by moving this to HDA core Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda')
-rw-r--r--sound/hda/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/hda/Kconfig b/sound/hda/Kconfig
index 6dc3914..3129546 100644
--- a/sound/hda/Kconfig
+++ b/sound/hda/Kconfig
@@ -14,3 +14,16 @@ config SND_HDA_I915
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.
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