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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2012-09-21 18:39:05 -0500
committerTakashi Iwai <tiwai@suse.de>2012-09-22 09:28:10 +0200
commit172d3b209622785ce7c4f4104319df06d9814b62 (patch)
tree83584dcecb552bc87b3c628fcdfdc0d240370aed /tools/perf/scripts/python/export-to-postgresql.py
parentALSA: hda/via - don't report presence on HPs with no presence support (diff)
downloadlinux-dev-172d3b209622785ce7c4f4104319df06d9814b62.tar.xz
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ALSA: hda - force use of SSYNC bits
SSYNC bits are typically used to start multiple streams synchronously. It makes sense to use them for a single stream for a more predictable startup sequence. The transfers only start once the DMA and FIFOs are ready. This results in a better correlation between timestamps and number of samples played. Credits to Kar Leong Wang for suggesting this improvement. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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