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hwdep.h
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1 
11 /*
12  * This library is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU Lesser General Public License as
14  * published by the Free Software Foundation; either version 2.1 of
15  * the License, or (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20  * GNU Lesser General Public License for more details.
21  *
22  * You should have received a copy of the GNU Lesser General Public
23  * License along with this library; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  *
26  */
27 
28 #ifndef __ALSA_HWDEP_H
29 #define __ALSA_HWDEP_H
30 
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 
42 #define SND_HWDEP_DLSYM_VERSION _dlsym_hwdep_001
43 
45 typedef struct _snd_hwdep_info snd_hwdep_info_t;
46 
48 typedef struct _snd_hwdep_dsp_status snd_hwdep_dsp_status_t;
49 
51 typedef struct _snd_hwdep_dsp_image snd_hwdep_dsp_image_t;
52 
54 typedef enum _snd_hwdep_iface {
74 
76 #define SND_HWDEP_OPEN_READ (O_RDONLY)
77 
78 #define SND_HWDEP_OPEN_WRITE (O_WRONLY)
79 
80 #define SND_HWDEP_OPEN_DUPLEX (O_RDWR)
81 
82 #define SND_HWDEP_OPEN_NONBLOCK (O_NONBLOCK)
83 
85 typedef enum _snd_hwdep_type {
93 
95 typedef struct _snd_hwdep snd_hwdep_t;
96 
97 int snd_hwdep_open(snd_hwdep_t **hwdep, const char *name, int mode);
98 int snd_hwdep_close(snd_hwdep_t *hwdep);
99 int snd_hwdep_poll_descriptors(snd_hwdep_t *hwdep, struct pollfd *pfds, unsigned int space);
100 int snd_hwdep_poll_descriptors_revents(snd_hwdep_t *hwdep, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
101 int snd_hwdep_nonblock(snd_hwdep_t *hwdep, int nonblock);
102 int snd_hwdep_info(snd_hwdep_t *hwdep, snd_hwdep_info_t * info);
105 int snd_hwdep_ioctl(snd_hwdep_t *hwdep, unsigned int request, void * arg);
106 ssize_t snd_hwdep_write(snd_hwdep_t *hwdep, const void *buffer, size_t size);
107 ssize_t snd_hwdep_read(snd_hwdep_t *hwdep, void *buffer, size_t size);
108 
109 size_t snd_hwdep_info_sizeof(void);
111 #define snd_hwdep_info_alloca(ptr) __snd_alloca(ptr, snd_hwdep_info)
115 
116 unsigned int snd_hwdep_info_get_device(const snd_hwdep_info_t *obj);
118 const char *snd_hwdep_info_get_id(const snd_hwdep_info_t *obj);
119 const char *snd_hwdep_info_get_name(const snd_hwdep_info_t *obj);
121 void snd_hwdep_info_set_device(snd_hwdep_info_t *obj, unsigned int val);
122 
123 size_t snd_hwdep_dsp_status_sizeof(void);
125 #define snd_hwdep_dsp_status_alloca(ptr) __snd_alloca(ptr, snd_hwdep_dsp_status)
129 
135 
136 size_t snd_hwdep_dsp_image_sizeof(void);
138 #define snd_hwdep_dsp_image_alloca(ptr) __snd_alloca(ptr, snd_hwdep_dsp_image)
142 
147 
148 void snd_hwdep_dsp_image_set_index(snd_hwdep_dsp_image_t *obj, unsigned int _index);
149 void snd_hwdep_dsp_image_set_name(snd_hwdep_dsp_image_t *obj, const char *name);
151 void snd_hwdep_dsp_image_set_length(snd_hwdep_dsp_image_t *obj, size_t length);
152 
155 #ifdef __cplusplus
156 }
157 #endif
158 
159 #endif /* __ALSA_HWDEP_H */
160