README: subsections for module parameters docs
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
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Tzafrir Cohen
Russ Meyerriecks
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105
README
105
README
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@ -445,57 +445,17 @@ reside directly under /sys/module/'module_name' .
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Useful module parameters:
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debug (most modules)::
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Sets debug mode / debug level. With most modules 'debug' can be either
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disabled (0, the default value) or enabled (any other value).
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+
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+
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wctdm and wcte1xp print several extra debugging messages if the value
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of debug is more than 1.
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+
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+
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Some modules have "debugging flags" bits - the value of debug is a
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bitmask and several messages are printed if some bits are set:
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- wctdm24xxp:
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* 1: DEBUG_CARD
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* 2: DEBUG_ECHOCAN
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- wct4xxp:
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* 1: DEBUG_MAIN
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* 2: DEBUG_DTMF
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* 4: DEBUG_REGS
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* 8: DEBUG_TSI
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* 16: DEBUG_ECHOCAN
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* 32: DEBUG_RBS
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* 64: DEBUG_FRAMER
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- xpp: See also README.Astribank:
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* 1: GENERAL - General debug comments.
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* 2: PCM - PCM-related messages. Tend to flood logs.
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* 4: LEDS - Anything related to the LEDs status control. The driver
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produces a lot of messages when the option is enabled.
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* 8: SYNC - Synchronization related messages.
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* 16: SIGNAL - DAHDI signalling related messages.
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* 32: PROC - Messages related to the procfs interface.
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* 64: REGS - Reading and writing to chip registers. Tends to flood
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logs.
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* 128: DEVICES - Device instantiation, destruction and such.
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* 256 - COMMANDS - Protocol commands. Tends to flood logs.
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=== debug
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(most modules)
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deftaps (dahdi)::
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The default size for the echo canceller. The number is in "taps", that
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is "samples", 1/8 ms. The default is 64 - for a tail size of 8 ms.
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+
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+
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Asterisk's chan_dahdi tends to pass its own value anyway, with a
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different default size. So normally setting this doesn't change
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anything.
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Sets debug mode / debug level. With most modules 'debug' can be either
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disabled (0, the default value) or enabled (any other value).
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max_pseudo_channels (dahdi)::
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The maximum number of pseudo channels that dahdi will allow userspace to
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create. Pseudo channels are used when conferencing channels together.
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The default is 512.
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wctdm and wcte1xp print several extra debugging messages if the value
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of debug is more than 1.
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auto_assign_spans (dahdi)::
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See <<_span_assignments,Span Assignments>> below.
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Some modules have "debugging flags" bits - the value of debug is a
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bitmask and several messages are printed if some bits are set:
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To get a list of parameters supported by a module, use
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@ -503,13 +463,60 @@ To get a list of parameters supported by a module, use
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Or, for a module you have just built:
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modinfo ./module_name.ko
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modinfo ./drivers/dahdi/module_name.ko
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For the xpp modules this will also include the description and default
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value of the module. You can find a list of useful xpp module parameters
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in README.Astribank .
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- wctdm24xxp:
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* 1: DEBUG_CARD
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* 2: DEBUG_ECHOCAN
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- wct4xxp:
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* 1: DEBUG_MAIN
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* 2: DEBUG_DTMF
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* 4: DEBUG_REGS
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* 8: DEBUG_TSI
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* 16: DEBUG_ECHOCAN
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* 32: DEBUG_RBS
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* 64: DEBUG_FRAMER
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- xpp: See also README.Astribank:
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* 1: GENERAL - General debug comments.
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* 2: PCM - PCM-related messages. Tend to flood logs.
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* 4: LEDS - Anything related to the LEDs status control. The driver
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produces a lot of messages when the option is enabled.
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* 8: SYNC - Synchronization related messages.
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* 16: SIGNAL - DAHDI signalling related messages.
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* 32: PROC - Messages related to the procfs interface.
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* 64: REGS - Reading and writing to chip registers. Tends to flood
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logs.
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* 128: DEVICES - Device instantiation, destruction and such.
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* 256 - COMMANDS - Protocol commands. Tends to flood logs.
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=== deftaps
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(dahdi)
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The default size for the echo canceller. The number is in "taps", that
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is "samples", 1/8 ms. The default is 64 - for a tail size of 8 ms.
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Asterisk's chan_dahdi tends to pass its own value anyway, with a
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different default size. So normally setting this doesn't change
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anything.
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=== max_pseudo_channels
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(dahdi)
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The maximum number of pseudo channels that dahdi will allow userspace to
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create. Pseudo channels are used when conferencing channels together.
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The default is 512.
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=== auto_assign_spans
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(dahdi)
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See <<_span_assignments,Span Assignments>> below.
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Internals
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---------
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DAHDI Device Files
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