[ALSA] dynamic minors (6/6): increase maximum number of sound cards
Modules: ALSA Core,Memalloc module,ALSA sequencer
With dynamic minor numbers, we can increase the number of sound cards.
This requires that the sequencer client numbers of some kernel drivers
are allocated dynamically, too.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/core/init.c b/sound/core/init.c
index 728bb2c..58e17d3 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -338,7 +338,7 @@
static void choose_default_id(struct snd_card *card)
{
- int i, len, idx_flag = 0, loops = 8;
+ int i, len, idx_flag = 0, loops = SNDRV_CARDS;
char *id, *spos;
id = spos = card->shortname;
@@ -380,9 +380,12 @@
__change:
len = strlen(id);
- if (idx_flag)
- id[len-1]++;
- else if ((size_t)len <= sizeof(card->id) - 3) {
+ if (idx_flag) {
+ if (id[len-1] != '9')
+ id[len-1]++;
+ else
+ id[len-1] = 'A';
+ } else if ((size_t)len <= sizeof(card->id) - 3) {
strcat(id, "_1");
idx_flag++;
} else {
@@ -461,12 +464,12 @@
read_lock(&snd_card_rwlock);
if ((card = snd_cards[idx]) != NULL) {
count++;
- snd_iprintf(buffer, "%i [%-15s]: %s - %s\n",
+ snd_iprintf(buffer, "%2i [%-15s]: %s - %s\n",
idx,
card->id,
card->driver,
card->shortname);
- snd_iprintf(buffer, " %s\n",
+ snd_iprintf(buffer, " %s\n",
card->longname);
}
read_unlock(&snd_card_rwlock);
@@ -508,7 +511,8 @@
for (idx = 0; idx < SNDRV_CARDS; idx++) {
read_lock(&snd_card_rwlock);
if ((card = snd_cards[idx]) != NULL)
- snd_iprintf(buffer, "%i %s\n", idx, card->module->name);
+ snd_iprintf(buffer, "%2i %s\n",
+ idx, card->module->name);
read_unlock(&snd_card_rwlock);
}
}
