mirror of https://gitee.com/openkylin/linux.git
32 lines
1.3 KiB
C
32 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* ALSA sequencer System Client
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* Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
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*/
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#ifndef __SND_SEQ_SYSTEM_H
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#define __SND_SEQ_SYSTEM_H
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#include <sound/seq_kernel.h>
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/* entry points for broadcasting system events */
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void snd_seq_system_broadcast(int client, int port, int type);
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#define snd_seq_system_client_ev_client_start(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_START)
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#define snd_seq_system_client_ev_client_exit(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_EXIT)
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#define snd_seq_system_client_ev_client_change(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_CHANGE)
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#define snd_seq_system_client_ev_port_start(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_START)
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#define snd_seq_system_client_ev_port_exit(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_EXIT)
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#define snd_seq_system_client_ev_port_change(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_CHANGE)
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int snd_seq_system_notify(int client, int port, struct snd_seq_event *ev);
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/* register our internal client */
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int snd_seq_system_client_init(void);
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/* unregister our internal client */
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void snd_seq_system_client_done(void);
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#endif
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