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authorGreg Kroah-Hartman <gregkh@suse.de>2009-11-30 11:15:02 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 11:55:25 -0800
commit9af23624ae2c7978313b46e58fdc4ca5d8b799f5 (patch)
tree4720c696b9416c3c0be2df1dc625e7be1bd30659 /drivers/usb
parentbe30fc4b650acb85549fd0a9c42fe042366de009 (diff)
USB: add devpath sysfs attribute
This is not exported from the usb core, yet we rely on it to create paths to interfaces for this device in sysfs. Export it to make userspace tools have an easier time to figure things out. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/core/sysfs.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 470e2413a9c..ae763974be2 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -139,6 +139,16 @@ show_devnum(struct device *dev, struct device_attribute *attr, char *buf)
static DEVICE_ATTR(devnum, S_IRUGO, show_devnum, NULL);
static ssize_t
+show_devpath(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct usb_device *udev;
+
+ udev = to_usb_device(dev);
+ return sprintf(buf, "%s\n", udev->devpath);
+}
+static DEVICE_ATTR(devpath, S_IRUGO, show_devpath, NULL);
+
+static ssize_t
show_version(struct device *dev, struct device_attribute *attr, char *buf)
{
struct usb_device *udev;
@@ -538,8 +548,8 @@ static struct attribute *dev_attrs[] = {
&dev_attr_bConfigurationValue.attr,
&dev_attr_bmAttributes.attr,
&dev_attr_bMaxPower.attr,
- &dev_attr_urbnum.attr,
/* device attributes */
+ &dev_attr_urbnum.attr,
&dev_attr_idVendor.attr,
&dev_attr_idProduct.attr,
&dev_attr_bcdDevice.attr,
@@ -551,6 +561,7 @@ static struct attribute *dev_attrs[] = {
&dev_attr_speed.attr,
&dev_attr_busnum.attr,
&dev_attr_devnum.attr,
+ &dev_attr_devpath.attr,
&dev_attr_version.attr,
&dev_attr_maxchild.attr,
&dev_attr_quirks.attr,