mirror of
https://github.com/alsa-project/alsa-utils
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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* Advanced Linux Sound Architecture Control Program
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* Copyright (c) 1997 by Perex, APS, University of South Bohemia
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/asoundlib.h>
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#define ALSACTL_FILE "/etc/asound.conf"
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#define LEFT 1
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#define RIGHT 2
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#define OUTPUT 0
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#define INPUT 1
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extern int debugflag;
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extern void error(const char *fmt,...);
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struct ctl_control {
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int change;
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snd_control_type_t type;
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snd_control_info_t info;
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snd_control_t c;
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struct ctl_control *next;
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};
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struct ctl {
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snd_ctl_hw_info_t hwinfo;
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struct ctl_control *controls;
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};
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struct soundcard {
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int no; /* card number */
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struct ctl control;
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struct soundcard *next;
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};
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extern struct soundcard *soundcards;
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extern struct soundcard *rsoundcards; /* read soundcards */
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void soundcard_setup_init(void);
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void soundcard_setup_done(void);
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int soundcard_setup_load(const char *filename, int skip);
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int soundcard_setup_write(const char *filename, int cardno);
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int soundcard_setup_collect_controls(int cardno);
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int soundcard_setup_merge_controls(int cardno);
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int soundcard_setup_process_controls(int cardno);
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char *control_id(snd_control_id_t *id);
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