Date: Mon, 8 Jun 2009 04:39:47 +0000 (UTC) From: Ariff Abdullah <ariff@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r193683 - head/sys/conf Message-ID: <200906080439.n584dllO015989@svn.freebsd.org>
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Author: ariff Date: Mon Jun 8 04:39:47 2009 New Revision: 193683 URL: http://svn.freebsd.org/changeset/base/193683 Log: Add notes on various SND_* options. Modified: head/sys/conf/NOTES Modified: head/sys/conf/NOTES ============================================================================== --- head/sys/conf/NOTES Mon Jun 8 04:34:51 2009 (r193682) +++ head/sys/conf/NOTES Mon Jun 8 04:39:47 2009 (r193683) @@ -2110,6 +2110,42 @@ hint.gusc.0.drq="1" hint.gusc.0.flags="0x13" # +# Following options are intended for debugging/testing purposes: +# +# SND_DEBUG Enable extra debugging code that includes +# sanity checking and possible increase of +# verbosity. +# +# SND_DIAGNOSTIC Simmilar in a spirit of INVARIANTS/DIAGNOSTIC, +# zero tolerance against inconsistencies. +# +# SND_FEEDER_MULTIFORMAT By default, only 16/32 bit feeders are compiled +# in. This options enable most feeder converters +# except for 8bit. WARNING: May bloat the kernel. +# +# SND_FEEDER_FULL_MULTIFORMAT Ditto, but includes 8bit feeders as well. +# +# SND_FEEDER_RATE_HP (feeder_rate) High precision 64bit arithmetic +# as much as possible (the default trying to +# avoid it). Possible slowdown. +# +# SND_PCM_64 (Only applicable for i386/32bit arch) +# Process 32bit samples through 64bit +# integer/arithmetic. Slight increase of dynamic +# range at a cost of possible slowdown. +# +# SND_OLDSTEREO Only 2 channels are allowed, effectively +# disabling multichannel processing. +# +options SND_DEBUG +options SND_DIAGNOSTIC +options SND_FEEDER_MULTIFORMAT +options SND_FEEDER_FULL_MULTIFORMAT +options SND_FEEDER_RATE_HP +options SND_PCM_64 +options SND_OLDSTEREO + +# # IEEE-488 hardware: # pcii: PCIIA cards (uPD7210 based isa cards) # tnt4882: National Instruments PCI-GPIB card.
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