lsdahdi - Man Page

lsdahdi

Example output:

        ### Span  1: WCTDM/0 "Wildcard TDM400P REV E/F Board 1"
          1 FXO        FXOLS      (In use)
          2 FXS        FXSKS
          3 FXS        FXSKS
          4 FXS        FXSKS
        ### Span  2: XBUS-00/XPD-00 "Xorcom XPD #00/00: FXO"
          5 FXO        FXSKS      (In use)
          6 FXO        FXSKS      (In use) (no pcm)
          7 FXO        FXSKS      (In use) (no pcm)
          8 FXO        FXSKS      (In use) (no pcm)
          9 FXO        FXSKS      (In use) (no pcm)
         10 FXO        FXSKS      (In use) (no pcm)
         11 FXO        FXSKS      (In use) (no pcm)
         12 FXO        FXSKS      (In use) (no pcm)
        ### Span  3: XBUS-00/XPD-10 "Xorcom XPD #00/10: FXO"
         13 FXO        FXSKS      (In use) (no pcm)
         14 FXO        FXSKS      (In use) (no pcm)
         15 FXO        FXSKS      (In use) (no pcm)
         16 FXO        FXSKS      (In use) (no pcm)
         17 FXO        FXSKS      (In use) (no pcm)
         18 FXO        FXSKS      (In use) (no pcm)
         19 FXO        FXSKS      (In use) (no pcm)
         20 FXO        FXSKS      (In use) (no pcm)

        ...

        ### Span  6: XBUS-01/XPD-00 "Xorcom XPD #01/00: FXS"
         37 FXS        FXOLS      (In use)
         38 FXS        FXOLS      (In use) (no pcm)
         39 FXS        FXOLS      (In use) (no pcm)
         40 FXS        FXOLS      (In use) (no pcm)
         41 FXS        FXOLS      (In use) (no pcm)
         42 FXS        FXOLS      (In use) (no pcm)
         43 FXS        FXOLS      (In use) (no pcm)
         44 FXS        FXOLS      (In use) (no pcm)
         45 Output     FXOLS      (In use) (no pcm)
         46 Output     FXOLS      (In use) (no pcm)
         47 Input      FXOLS      (In use) (no pcm)
         48 Input      FXOLS      (In use) (no pcm)
         49 Input      FXOLS      (In use) (no pcm)
         50 Input      FXOLS      (In use) (no pcm)

The first column is the type of the channel (port, for an analog device)  and the second one is the signalling (if set).

lsdahdi is a somewhat glorified 'cat /proc/dahdi/*' . Unlike that command, it sorts the spans with the proper order. It also formats the output slightly differently.

dahdi_registration(8).