void scan_cycle(alsa_rawmidi_t *midi)
{
int card = -1, err;
scan_t scan;
midi_port_t **ports;
//debug_log("scan: cleanup");
scan_cleanup(midi);
scan.midi = midi;
scan.iterator = &midi->scan.ports;
snd_rawmidi_info_alloca(&scan.info);
//debug_log("scan: rescan");
while ((err = snd_card_next(&card))>=0 && card>=0) {
char name[32];
snprintf(name, sizeof(name), "hw:%d", card);
if ((err = snd_ctl_open(&scan.ctl, name, SND_CTL_NONBLOCK))>=0) {
scan_card(&scan);
snd_ctl_close(scan.ctl);
} else
alsa_error("scan: snd_ctl_open", err);
}
// delayed open to workaround alsa<1.0.14 bug (can't open more than 1 subdevice if ctl is opened).
ports = &midi->scan.ports;
while (*ports) {
midi_port_t *port = *ports;
if (port->state == PORT_CREATED)
ports = scan_port_open(midi, ports);
else
ports = &port->next;
}
}
void
scan_cards(card_t * cards) {
int card_i = 0;
for (; card_i < CARDS_LEN; card_i++) {
scan_card(&cards[card_i]);
if (card_i != CARDS_LEN - 1) {
scanf(" ");
}
}
scanf("\n");
}
