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Commit 9af23624 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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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: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent be30fc4b

drivers/usb/core/sysfs.c

+12 −1
Original line number Diff line number Diff line
@@ -138,6 +138,16 @@ 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)

{
@@ -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,