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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2009-11-30 11:15:02 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 11:55:25 -0800 |
| commit | 9af23624ae2c7978313b46e58fdc4ca5d8b799f5 (patch) | |
| tree | 4720c696b9416c3c0be2df1dc625e7be1bd30659 | |
| parent | be30fc4b650acb85549fd0a9c42fe042366de009 (diff) | |
| download | linux-3.10-9af23624ae2c7978313b46e58fdc4ca5d8b799f5.tar.gz linux-3.10-9af23624ae2c7978313b46e58fdc4ca5d8b799f5.tar.bz2 linux-3.10-9af23624ae2c7978313b46e58fdc4ca5d8b799f5.zip | |
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>
| -rw-r--r-- | drivers/usb/core/sysfs.c | 13 |
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, |