linux-kernel - [PATCH 34/64] Driver Core: drm: add nodename for drm devices

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Message-Id: <1245131213-24168-34-git-send-email-gregkh@suse.de>
Date:	Mon, 15 Jun 2009 22:46:23 -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 34/64] Driver Core: drm: add nodename for drm devices

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

This adds support to the drm core to report the proper device name to
userspace for the drm 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>
---
 drivers/gpu/drm/drm_sysfs.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 9987ab8..85ec31b 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -70,6 +70,11 @@ static ssize_t version_show(struct class *dev, char *buf)
 		       CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE);
 }
 
+static char *drm_nodename(struct device *dev)
+{
+	return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
+}
+
 static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
 
 /**
@@ -101,6 +106,8 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
 	if (err)
 		goto err_out_class;
 
+	class->nodename = drm_nodename;
+
 	return class;
 
 err_out_class:
-- 
1.6.3.2

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