147 lines
3.9 KiB
Groff
147 lines
3.9 KiB
Groff
.TH "SPAN_TYPES" "8" "13 Oct 2013" "" ""
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.SH NAME
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span_types \- set DAHDI spans properties before registration (E1/T1)
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.SH SYNOPSIS
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.B span_types <list|dumpconfig|set> [\fIdevpath \fB[\fIdevpath \fB...]]
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.SH DESCRIPTION
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The span type (E1/T1/J1) must be set to a span before registering it
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with DAHDI, as E1 spans use more channels. \fBspan_types\fR applies the
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span type configuration to an unregistered span.
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Using it only makes sense when the kernel module parameter
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\fBdahdi.auto_assign_span\fR is unset, otherwise the DAHDI spans register
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automatically.
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.SH OPTIONS
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.B span_types
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takes a command and an optional list of devices. If no device is given,
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the command is applied to all devices.
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The device is marked as a path in the SysFS tree.
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.B set
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.RS
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Reads settings from \fBspan-types.conf\fR and applies them to the
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device(s) specified in the command line (or all devices, if none
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specified).
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.RE
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.B list
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.RS
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List types for all spans in the system which may be set with span_types
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(E1/T1/J1 spans).
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.RE
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.B dumpconfig
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.RS
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List types for the spans in a format fit to be used in
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\fBspan-types.conf\fR. Use this to generate a configuration file after
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you have (perhaps manually) set all existing spans.
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.B dahdi_genconf spantypes
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uses this command internally.
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.RE
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.SH CONFIGURATION
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.B span-types.conf
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is a file with lines specifying registration of spans.
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Empty lines or lines beginning with '#' are ignored.
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Each line is in the format of:
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.I ID spanspec ...
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The \fIID\fR field specifies the DAHDI device and the \fIspanspecs\fR
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define how to register its spans. A line may have multiple
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\fIspanspecs\fR in a single line (though dumpconfig generates a
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configuration with one per line).
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.SS Span Identifier
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A DAHDI device may be specified either by a hardware identifier (a
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software readable serial number or whatever) or the location in which
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it is installed on the system. The former makes it simpler to change
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connector / slot whereas the latter makes it simpler to replace a unit.
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The value in this field is matched (when the commands \fBadd\fR and
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\fBremove\fR) are used) to the following values:
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\fIhwid\fR
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\fB@\fIlocation\fR
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\fIdevpath\fR
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See above for their descriptions. The value may include shell wildcards:
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*, ? and [], which are used in the match. The values to be matched are
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first cleaned up: '!' is replaced with '/' and any character beyond
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"a-zA-Z0-9/:.-" is removed.
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.SS Span Specification
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Each line should have one or more span specifications: this is the value
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used to register a span with DAHDI in the SysFS interface. A
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specification has three colon-separated numbers:
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.I rel_span_no:span_type
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for instance, the following are four span specifications specify ports 1 and 2 as E1 and ports 3 and 4 as T1: [12]:E1 [34]:T1 .
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.B rel_span_no
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.RS
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The relative number of the span in the device. E.g.: port number.
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.RE
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.B span_type
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.RS
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E1/T1/J1
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.RE
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.SH ENVIRONMENT
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.B DAHDICONFDIR
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.RS
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The directory in which span-types.conf resides. /etc/dahdi if not
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overridden from the environment.
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.RE
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.B span_types_conf
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.RS
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The path to span-types.conf resides. /etc/dahdi/span-types.conf if
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not overridden from the environment.
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.RE
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.SH FILES
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.B /etc/dahdi/span-types.conf
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.RS
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The default location for the configuration file.
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.RE
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.B /sys/bus/dahdi_devices/devices/\fIdevice\fR
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.RS
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SysFS node for the device. In this directory reside the following
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files, among others:
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.B spantype
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.RS
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read/write file. Reading from it returns current configuration for spans
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of the device. Span-specifications can be written to it to change types
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(but only for a span that is not registered).
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.RE
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.SH SEE ALSO
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span_assignments(8), dahdi_genconf(8), dahdi_cfg(8)
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.SH AUTHOR
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span_types was written by Oron Peled. This manual page was
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written by Tzafrir Cohen. Permission is granted to copy, distribute
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and/or modify this document under the terms of the GNU General Public
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License, Version 2 any later version published by the Free Software
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Foundation.
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