linux-kernel - [PATCH 32/64] Driver Core: sound: add nodename for sound drivers

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Date:	Mon, 15 Jun 2009 22:46:21 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Kay Sievers <kay.sievers@...y.org>, Jan Blunck <jblunck@...e.de>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 32/64] Driver Core: sound: add nodename for sound drivers

From: Kay Sievers <kay.sievers@...y.org>

This adds support to the sound core to report the proper device name to
userspace for their devices.

Signed-off-by: Kay Sievers <kay.sievers@...y.org>
Signed-off-by: Jan Blunck <jblunck@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 sound/sound_core.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sound/sound_core.c b/sound/sound_core.c
index 2b302bb..12522e6 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -27,6 +27,11 @@ MODULE_DESCRIPTION("Core sound module");
 MODULE_AUTHOR("Alan Cox");
 MODULE_LICENSE("GPL");
 
+static char *sound_nodename(struct device *dev)
+{
+	return kasprintf(GFP_KERNEL, "snd/%s", dev_name(dev));
+}
+
 static int __init init_soundcore(void)
 {
 	int rc;
@@ -41,6 +46,8 @@ static int __init init_soundcore(void)
 		return PTR_ERR(sound_class);
 	}
 
+	sound_class->nodename = sound_nodename;
+
 	return 0;
 }
 
-- 
1.6.3.2

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