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 <sound/core.h>
   9
  10 static int __init alsa_sound_last_init(void)
  11 {
  12         struct snd_card *card;
  13         int idx, ok = 0;
  14
  15         printk(KERN_INFO "ALSA device list:\n");
  16         for (idx = 0; idx < SNDRV_CARDS; idx++) {
  17                 card = snd_card_ref(idx);
  18                 if (card) {
  19                         printk(KERN_INFO "  #%i: %s\n", idx, card->longname);
  20                         snd_card_unref(card);
  21                         ok++;
  22                 }
  23         }
  24         if (ok == 0)
  25                 printk(KERN_INFO "  No soundcards found.\n");
  26         return 0;
  27 }
  28
  29 late_initcall_sync(alsa_sound_last_init);