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authorKay Sievers <kay.sievers@vrfy.org>2009-06-10 19:50:33 +0200
committerTakashi Iwai <tiwai@suse.de>2009-06-10 19:50:33 +0200
commit1f3fff7bda95b75a6be5a02c2a6902573d8c18e6 (patch)
treea70fe5dbd623d57e3144a1e7cc7d69c618fcaf5d /sound/core
parentad0b0822f98ef547e2461ce463e4233bad7848a8 (diff)
downloadlinux-1f3fff7bda95b75a6be5a02c2a6902573d8c18e6.tar.gz
ALSA: use card device as parent for jack input-devices
This moves the jack devices from the PCI device into the ALSA card device, which
makes it easier for userspace to find all devices belonging to a specific card
while granting access to logged-in users.

Jack input devices from sound cards can now simply be matched with udev by doing:
  SUBSYSTEM="input", SUBSYSTEMS="sound", ...

 ls -l /sys/devices/pci0000:00/0000:00:1b.0/sound/card0
 controlC0
 device -> ../../../0000:00:1b.0
 id
 input10
 input11
 input8
 input9
 number
 pcmC0D0c
 pcmC0D0p
 pcmC0D1p
 power
 subsystem -> ../../../../../class/sound
 uevent

Cc: Lennart Poettering <lennart@0pointer.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/jack.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/core/jack.c b/sound/core/jack.c
index d54d1a05fe65..f705eec7372a 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -63,7 +63,7 @@ static int snd_jack_dev_register(struct snd_device *device)
 
 	/* Default to the sound card device. */
 	if (!jack->input_dev->dev.parent)
-		jack->input_dev->dev.parent = card->dev;
+		jack->input_dev->dev.parent = snd_card_get_device_link(card);
 
 	err = input_register_device(jack->input_dev);
 	if (err == 0)