1iecset(1)                   General Commands Manual                  iecset(1)
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NAME

6       iecset - Set or dump IEC958 status bits
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SYNOPSIS

10       iecset [options] [cmd arg...]
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DESCRIPTION

14       iecset  is  a  small  utility  to  set or dump the IEC958 (or so-called
15       "S/PDIF") status bits of the specified sound card via ALSA control API.
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17       When iecset is started without arguments except for  options,  it  will
18       show the current IEC958 status in a human-readable form.  When the com‐
19       mands are given in the arguments, they are parsed and the IEC958 status
20       bits are updated.  The resultant status is shown as well.
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22       The commands consist of the command directive and the argument.  As the
23       boolean argument, yes, no, true, false, or a digit number is allowed.
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EXAMPLES

27       iecset -Dhw:1
28              Displays the current IEC958 status  bits  on  the  second  card.
29              This is equivalent with -c 1.
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31       iecset -x
32              Displays  the current IEC958 status bits in a style of the argu‐
33              ments for the PCM stream.  The output string can  be  passed  to
34              the iec958 (or spdif) PCM type as the optional argument.
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36       iecset pro off audio off
37              Sets  the  current  status to the consumer-mode and turns on the
38              non-audio bit.  The modified status will be shown, too.
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OPTIONS

42       -D device
43              Specifies the device name of the control to open
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45       -c card
46              Specifies the card index to open.  Equivalent with -Dhw:x.
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48       -x     Dumps the status in the form of AESx bytes.
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50       -i     Reads the command sequences from stdin.  Each  line  has  single
51              command.
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COMMANDS

55       professional <bool>
56              The professional mode (true) or consumer mode (false).
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59       audio <bool>
60              The audio mode (true) or non-audio mode (false).
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63       rate <int>
64              The sample rate in Hz.
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67       emphasis <int>
68              The emphasis: 0 = none, 1 = 50/15us, 2 = CCITT.
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71       lock <bool>
72              Rate lock: locked (true), unlocked (false).  This command is for
73              the professional mode only.
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76       sbits <int>
77              Sample bits:  2 = 20bit, 4 = 24bit, 6 = undefined.  This command
78              is for the professional mode only.
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81       wordlength <int>
82              Wordlength: 0 = No, 2 = 22-18 bit, 4 = 23-19 bit, 5 = 24-20 bit,
83              6 = 20-16 bit.  This command is for the professional mode only.
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86       category <int>
87              Category: the value is from 0 to 0x7f.  This command is for  the
88              consumer mode only.
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91       copyright <bool>
92              Copyright:  copyrighted  (true),  non-copyrighted (false).  This
93              command is for the consumer mode only.
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96       original <boo>
97              Original flag: original (true), 1st  generation  (false).   This
98              command is for the consumer mode only.
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AUTHOR

102       Takashi Iwai <tiwai@suse.de>
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106                                  23 Oct 2003                        iecset(1)
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