Provided by: alsa-utils_1.1.0-0ubuntu5_amd64 
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)