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>
This commit is contained in:
parent
be30fc4b65
commit
9af23624ae
|
@ -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,
|
||||
|
|
Loading…
Reference in a new issue