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aconnect(1)									      aconnect(1)

NAME
       aconnect - ALSA sequencer connection manager

SYNOPSIS
       aconnect [-d] [-options] sender receiver
       aconnect -i|-o [-options]
       aconnect -x


DESCRIPTION
       aconnect  is a utility to connect and disconnect two existing ports on ALSA sequencer sys-
       tem.  The ports with the arbitrary  subscription  permission,  such  as	created  by  ase-
       qview(1),  can  be  connected  to any (MIDI) device ports using aconnect.  For example, to
       connect from port 64:0 to 65:0, run as follows:

	   % aconnect 64:0 65:0

       The connection is one-way, and the whole data to the sender port (64:0) is  redirected  to
       the  receiver  port  (65:0).  When another port (e.g. 65:1) is attached to the same sender
       port, the data is sent to both receiver ports.  For disconnection, use -d option.

       % aconnect -d 64:0 65:0

       The address can be given using the client's name.

       % aconnect External:0 Emu8000:1

       Then the port 0 of the client matching with the string "External" is connected to the port
       1 of the client matching with the "Emu8000".

       Another	function  of  aconnect	is to list the present ports on the given condition.  The
       input ports, which may become sender ports, can be listed with -i option.

       % aconnect -i
       client 0: 'System' [type=kernel]
	   0 'Timer	      '
	   1 'Announce	      '
       client 64: 'External MIDI-0' [type=kernel]
	   0 'MIDI 0-0	      '

       Similarly, to see the output ports, use -o flag.

       You can remove all existing exported connections using -x option.  This function is useful
       for terminating the ALSA drivers, because the modules with sequencer connections cannot be
       unloaded unless their connections are removed.

OPTIONS
   CONNECTION MANAGEMENT
       -d, --disconnect
	      Disconnect the given subscription.

       -e, --exclusive
	      Connect ports with exclusive mode.  Both sender and receiver ports can be no longer
	      connected by any other ports.

       -r, --real queue
	      Convert  time-stamps  of	event packets to the current value of the given real-time
	      queue.  This is option is, however, not so useful, since the receiver port must use
	      (not necessarily own) the specified queue.

       -t, --tick queue
	      Like  -r	option,  but  time-stamps are converted to the current value of the given
	      tick queue.

   LIST PORTS
       -i, --input
	      List existing input (readable) ports.  This option is exclusive to -o.

       -o, --output
	      List existing output (writable) ports.  This option is exclusive to -i.

       -l, --list
	      List the current connection status.  The connected  and  connecting  ports  from/to
	      each port are listed together.  The suffix flag [ex] means the connection is exclu-
	      sive.  The suffix flag [real:#] and [tick:#] mean the connection includes real-time
	      and tick conversion on the listed queue, respectively.

   REMOVE ALL CONNECTIONS
       -x, --removeall
	      Remove all exported connections.

SEE ALSO
       aseqnet(1), aseqview(1)

AUTHOR
       Takashi Iwai <tiwai@suse.de>

					 August 31, 2000			      aconnect(1)
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