MAN sezione 1 - Torna all'indice
MAN PAGE: aconnect(1)Contents
aconnect - ALSA sequencer connection manager
aconnect [-d] [-options] sender receiver
aconnect -i|-o [-options]
aconnect -x
aconnect is a utility to connect and disconnect two exist
ing ports on ALSA sequencer system. 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
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' [group=system] [type=kernel]
0 'Timer ' [group=system]
1 'Announce ' [group=system]
client 64: '0: MIDI Synth' [group=] [type=kernel]
0 'card 0: synth-midi: 0' [group=device]
Similary, 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.
CONNNECTION MANAGEMENT
-d, --disconnect
Disconnect the given subscription.
-e, --exclusive
Connect ports with exclusvie 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.
-g, --group name
Specify the group name that aconnect uses. Some
ports may have special permissions, so that only
the same group may subscribe to them. In such a
case, aconnect can fake the group name with this
option.
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 connec
tion 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.
aseqnet(1), aseqview(1)
Takashi Iwai <tiwai@suse.de>
August 31, 2000 2 |
