iecset man page on ElementaryOS

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iecset(1)							     iecset(1)

NAME
       iecset - Set or dump IEC958 status bits

SYNOPSIS
       iecset [options] [cmd arg...]

DESCRIPTION
       iecset  is  a  small  utility  to  set or dump the IEC958 (or so-called
       "S/PDIF") status bits of the specified sound card via ALSA control API.

       When iecset is started without arguments except for  options,  it  will
       show the current IEC958 status in a human-readable form.	 When the com‐
       mands are given in the arguments, they are parsed and the IEC958 status
       bits are updated.  The resultant status is shown as well.

       The commands consist of the command directive and the argument.	As the
       boolean argument, yes, no, true, false, or a digit number is allowed.

EXAMPLES
       iecset -Dhw:1
	      Displays the current IEC958 status  bits	on  the	 second	 card.
	      This is equivalent with -c 1.

       iecset -x
	      Displays	the current IEC958 status bits in a style of the argu‐
	      ments for the PCM stream.	 The output string can	be  passed  to
	      the iec958 (or spdif) PCM type as the optional argument.

       iecset pro off audio off
	      Sets  the	 current  status to the consumer-mode and turns on the
	      non-audio bit.  The modified status will be shown, too.

OPTIONS
       -D device
	      Specifies the device name of the control to open

       -c card
	      Specifies the card index to open.	 Equivalent with -Dhw:x.

       -n index
	      Specifies the IEC958 control element index,  in  case  you  have
	      multiple IEC958 devices and need to choose one of them.

       -x     Dumps the status in the form of AESx bytes.

       -i     Reads  the  command  sequences from stdin.  Each line has single
	      command.

COMMANDS
       professional <bool>
	      The professional mode (true) or consumer mode (false).

       audio <bool>
	      The audio mode (true) or non-audio mode (false).

       rate <int>
	      The sample rate in Hz.

       emphasis <int>
	      The emphasis: 0 = none, 1 = 50/15us, 2 = CCITT.

       lock <bool>
	      Rate lock: locked (true), unlocked (false).  This command is for
	      the professional mode only.

       sbits <int>
	      Sample bits:  2 = 20bit, 4 = 24bit, 6 = undefined.  This command
	      is for the professional mode only.

       wordlength <int>
	      Wordlength: 0 = No, 2 = 22-18 bit, 4 = 23-19 bit, 5 = 24-20 bit,
	      6 = 20-16 bit.  This command is for the professional mode only.

       category <int>
	      Category:	 the value is from 0 to 0x7f.  This command is for the
	      consumer mode only.

       copyright <bool>
	      Copyright: copyrighted (true),  non-copyrighted  (false).	  This
	      command is for the consumer mode only.

       original <boo>
	      Original	flag:  original	 (true), 1st generation (false).  This
	      command is for the consumer mode only.

AUTHOR
       Takashi Iwai <tiwai@suse.de>

				  23 Oct 2003			     iecset(1)
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