08-19-2010
At this point you should decide whether you should hire a professional or RTFM
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LEARN ABOUT DEBIAN
iecset
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 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 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 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)