sound/last.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Advanced Linux Sound Architecture
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/delay.h>
   9 #include <sound/core.h>
  10
  11 static int __init alsa_sound_last_init(void)
  12 {
  13         struct snd_card *card;
  14         int idx, ok = 0;
  15         msleep(2000);
  16
  17         printk(KERN_INFO "ALSA device list:\n");
  18         for (idx = 0; idx < SNDRV_CARDS; idx++) {
  19                 card = snd_card_ref(idx);
  20                 if (card) {
  21                         printk(KERN_INFO "  #%i: %s\n", idx, card->longname);
  22                         snd_card_unref(card);
  23                         ok++;
  24                 }
  25         }
  26         if (ok == 0)
  27                 printk(KERN_INFO "  No soundcards found.\n");
  28         return 0;
  29 }
  30
  31 late_initcall_sync(alsa_sound_last_init);