1 #include <stdio.h> 2 #include <string.h> 3 #include "../include/asoundlib.h" 4 5 int main(void) 6 { 7 int idx, dev, err; 8 snd_ctl_t *handle; 9 snd_ctl_card_info_t *info; 10 snd_pcm_info_t *pcminfo; 11 snd_rawmidi_info_t *rawmidiinfo; 12 char str[128]; 13 14 snd_ctl_card_info_alloca(&info); 15 snd_pcm_info_alloca(&pcminfo); 16 snd_rawmidi_info_alloca(&rawmidiinfo); 17 18 idx = -1; 19 while (1) { 20 if ((err = snd_card_next(&idx)) < 0) { 21 printf("Card next error: %s\n", snd_strerror(err)); 22 break; 23 } 24 if (idx < 0) 25 break; 26 sprintf(str, "hw:CARD=%i", idx); 27 if ((err = snd_ctl_open(&handle, str, 0)) < 0) { 28 printf("Open error: %s\n", snd_strerror(err)); 29 continue; 30 } 31 if ((err = snd_ctl_card_info(handle, info)) < 0) { 32 printf("HW info error: %s\n", snd_strerror(err)); 33 continue; 34 } 35 printf("Soundcard #%i:\n", idx + 1); 36 printf(" card - %i\n", snd_ctl_card_info_get_card(info)); 37 printf(" id - '%s'\n", snd_ctl_card_info_get_id(info)); 38 printf(" driver - '%s'\n", snd_ctl_card_info_get_driver(info)); 39 printf(" name - '%s'\n", snd_ctl_card_info_get_name(info)); 40 printf(" longname - '%s'\n", snd_ctl_card_info_get_longname(info)); 41 printf(" mixername - '%s'\n", snd_ctl_card_info_get_mixername(info)); 42 printf(" components - '%s'\n", snd_ctl_card_info_get_components(info)); 43 dev = -1; 44 while (1) { 45 snd_pcm_sync_id_t sync; 46 if ((err = snd_ctl_pcm_next_device(handle, &dev)) < 0) { 47 printf(" PCM next device error: %s\n", snd_strerror(err)); 48 break; 49 } 50 if (dev < 0) 51 break; 52 snd_pcm_info_set_device(pcminfo, dev); 53 snd_pcm_info_set_subdevice(pcminfo, 0); 54 snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK); 55 if ((err = snd_ctl_pcm_info(handle, pcminfo)) < 0) { 56 printf(" PCM info error: %s\n", snd_strerror(err)); 57 continue; 58 } 59 printf("PCM info, device #%i:\n", dev); 60 printf(" device - %i\n", snd_pcm_info_get_device(pcminfo)); 61 printf(" subdevice - %i\n", snd_pcm_info_get_subdevice(pcminfo)); 62 printf(" stream - %i\n", snd_pcm_info_get_stream(pcminfo)); 63 printf(" card - %i\n", snd_pcm_info_get_card(pcminfo)); 64 printf(" id - '%s'\n", snd_pcm_info_get_id(pcminfo)); 65 printf(" name - '%s'\n", snd_pcm_info_get_name(pcminfo)); 66 printf(" subdevice name - '%s'\n", snd_pcm_info_get_subdevice_name(pcminfo)); 67 printf(" class - 0x%x\n", snd_pcm_info_get_class(pcminfo)); 68 printf(" subclass - 0x%x\n", snd_pcm_info_get_subclass(pcminfo)); 69 printf(" subdevices count - %i\n", snd_pcm_info_get_subdevices_count(pcminfo)); 70 printf(" subdevices avail - %i\n", snd_pcm_info_get_subdevices_avail(pcminfo)); 71 sync = snd_pcm_info_get_sync(pcminfo); 72 printf(" sync - 0x%x,0x%x,0x%x,0x%x\n", sync.id32[0], sync.id32[1], sync.id32[2], sync.id32[3]); 73 } 74 dev = -1; 75 while (1) { 76 if ((err = snd_ctl_rawmidi_next_device(handle, &dev)) < 0) { 77 printf(" RAWMIDI next device error: %s\n", snd_strerror(err)); 78 break; 79 } 80 if (dev < 0) 81 break; 82 snd_rawmidi_info_set_device(rawmidiinfo, dev); 83 snd_rawmidi_info_set_subdevice(rawmidiinfo, 0); 84 snd_rawmidi_info_set_stream(rawmidiinfo, SND_RAWMIDI_STREAM_OUTPUT); 85 if ((err = snd_ctl_rawmidi_info(handle, rawmidiinfo)) < 0) { 86 printf(" RAWMIDI info error: %s\n", snd_strerror(err)); 87 continue; 88 } 89 printf("RAWMIDI info, device #%i:\n", dev); 90 printf(" device - %i\n", snd_rawmidi_info_get_device(rawmidiinfo)); 91 printf(" subdevice - %i\n", snd_rawmidi_info_get_subdevice(rawmidiinfo)); 92 printf(" stream - %i\n", snd_rawmidi_info_get_stream(rawmidiinfo)); 93 printf(" card - %i\n", snd_rawmidi_info_get_card(rawmidiinfo)); 94 printf(" flags - 0x%x\n", snd_rawmidi_info_get_flags(rawmidiinfo)); 95 printf(" id - '%s'\n", snd_rawmidi_info_get_id(rawmidiinfo)); 96 printf(" name - '%s'\n", snd_rawmidi_info_get_name(rawmidiinfo)); 97 printf(" subname - '%s'\n", snd_rawmidi_info_get_subdevice_name(rawmidiinfo)); 98 printf(" subdevices count - %i\n", snd_rawmidi_info_get_subdevices_count(rawmidiinfo)); 99 printf(" subdevices avail - %i\n", snd_rawmidi_info_get_subdevices_avail(rawmidiinfo)); 100 } 101 snd_ctl_close(handle); 102 } 103 104 snd_config_update_free_global(); 105 return 0; 106 } 107
