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@@ -266,7 +266,7 @@ submit the improvement patch to the author.
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Direct Debugging
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~~~~~~~~~~~~~~~~
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If no model option gives you a better result, and you are a touch guy
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-to fight again the evil, try debugging via hitting the raw HD-audio
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+to fight against evil, try debugging via hitting the raw HD-audio
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codec verbs to the device. Some tools are available: hda-emu and
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hda-analyzer. The detailed description is found in the sections
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below. You'd need to enable hwdep for using these tools. See "Kernel
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@@ -389,7 +389,7 @@ power-down/up depending on the device. Some of them might be
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solvable, but some are hard, I'm afraid. Some distros such as
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openSUSE enables the power-saving feature automatically when the power
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cable is unplugged. Thus, if you hear noises, suspect first the
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-power-saving. See /sys/modules/snd_hda_intel/parameters/power_save to
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+power-saving. See /sys/module/snd_hda_intel/parameters/power_save to
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check the current value. If it's non-zero, the feature is turned on.
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@@ -503,6 +503,19 @@ alsa-project.org:
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- http://git.alsa-project.org/?p=alsa.git;a=tree;f=hda-analyzer
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+Codecgraph
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+~~~~~~~~~~
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+Codecgraph is a utility program to generate a graph and visualizes the
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+codec-node connection of a codec chip. It's especially useful when
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+you analyze or debug a codec without a proper datasheet. The program
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+parses the given codec proc file and converts to SVG via graphiz
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+program.
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+
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+The tarball and GIT trees are found in the web page at:
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+
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+- http://helllabs.org/codecgraph/
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+
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+
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hda-emu
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~~~~~~~
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hda-emu is an HD-audio emulator. The main purpose of this program is
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Takashi Iwai