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iecset(1)		     General Commands Manual		       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 commands  are
     given  in the arguments, they are parsed and the IEC958 status bits are up-
     dated.  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 arguments
	    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  multi-
	    ple 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 com-
	    mand.

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 con-
	    sumer mode only.

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

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

AUTHOR
     Takashi Iwai <tiwai@suse.de>

				   23 Oct 2003			       iecset(1)

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