aconnect [-d] [-options] sender receiver
aconnect -i|-o [-options]
aconnect is a utility to connect and disconnect two existing ports on
ALSA sequencer system. The ports with the arbitrary subscription per-
mission, such as created by aseqview(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 mod-
ules with sequencer connections cannot be unloaded unless their connec-
tions are removed.
Disconnect the given subscription.
Like -r option, but time-stamps are converted to the current
value of the given tick queue.
List existing input (readable) ports. This option is exclusive
List existing output (writable) ports. This option is exclusive
List the current connection status. The connected and connect-
ing ports from/to each port are listed together. The suffix
flag [ex] means the connection is exclusive. The suffix flag
[real:#] and [tick:#] mean the connection includes real-time and
tick conversion on the listed queue, respectively.
REMOVE ALL CONNECTIONS
Remove all exported connections.
Takashi Iwai <firstname.lastname@example.org>
August 31, 2000 aconnect(1)
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