ALSA: hda - Update HD-Audio.txt

Fixed typos and added a section about codecgraph.
Thanks to Vedran Miletić and Daniel T Chen for suggestions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index ca8187d..ee9117e 100644 (file)
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -266,7 +266,7 @@ submit the improvement patch to the author.
 Direct Debugging
 ~~~~~~~~~~~~~~~~
 If no model option gives you a better result, and you are a touch guy
 Direct Debugging
 ~~~~~~~~~~~~~~~~
 If no model option gives you a better result, and you are a touch guy

-to fight again the evil, try debugging via hitting the raw HD-audio
+to fight against evil, try debugging via hitting the raw HD-audio

 codec verbs to the device.  Some tools are available: hda-emu and
 hda-analyzer.  The detailed description is found in the sections
 below.  You'd need to enable hwdep for using these tools.  See "Kernel
 codec verbs to the device.  Some tools are available: hda-emu and
 hda-analyzer.  The detailed description is found in the sections
 below.  You'd need to enable hwdep for using these tools.  See "Kernel


@@ -389,7 +389,7 @@ power-down/up depending on the device.  Some of them might be
 solvable, but some are hard, I'm afraid.  Some distros such as
 openSUSE enables the power-saving feature automatically when the power
 cable is unplugged.  Thus, if you hear noises, suspect first the
 solvable, but some are hard, I'm afraid.  Some distros such as
 openSUSE enables the power-saving feature automatically when the power
 cable is unplugged.  Thus, if you hear noises, suspect first the

-power-saving.  See /sys/modules/snd_hda_intel/parameters/power_save to
+power-saving.  See /sys/module/snd_hda_intel/parameters/power_save to

 check the current value.  If it's non-zero, the feature is turned on.
 
 
 check the current value.  If it's non-zero, the feature is turned on.
 
 


@@ -503,6 +503,19 @@ alsa-project.org:
 - http://git.alsa-project.org/?p=alsa.git;a=tree;f=hda-analyzer
 
 
 - http://git.alsa-project.org/?p=alsa.git;a=tree;f=hda-analyzer
 
 

+Codecgraph
+~~~~~~~~~~
+Codecgraph is a utility program to generate a graph and visualizes the
+codec-node connection of a codec chip.  It's especially useful when
+you analyze or debug a codec without a proper datasheet.  The program
+parses the given codec proc file and converts to SVG via graphiz
+program.
+
+The tarball and GIT trees are found in the web page at:
+
+- http://helllabs.org/codecgraph/
+
+

 hda-emu
 ~~~~~~~
 hda-emu is an HD-audio emulator.  The main purpose of this program is
 hda-emu
 ~~~~~~~
 hda-emu is an HD-audio emulator.  The main purpose of this program is