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 system. The ports with the arbitrary subscription permission, 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 | |
% aconnect -d 64:0 65:0
The address can be given using the clients 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 exclusive.
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
AUTHOR
Takashi Iwai <tiwai@suse.de>