From: Alan Stern Date: Wed, 25 Apr 2007 19:15:43 +0000 (-0400) Subject: USB: add "busnum" attribute for USB devices X-Git-Tag: v2.6.22-rc1~1117^2~12 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83f7d958eab2fbc6b159ee92bf1493924e1d0f72;p=linux-2.6 USB: add "busnum" attribute for USB devices This patch (as903) adds a "busnum" sysfs attribute for USB devices. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 2ea47a38ae..e7c9823774 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -117,6 +117,16 @@ show_speed(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR(speed, S_IRUGO, show_speed, NULL); +static ssize_t +show_busnum(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct usb_device *udev; + + udev = to_usb_device(dev); + return sprintf(buf, "%d\n", udev->bus->busnum); +} +static DEVICE_ATTR(busnum, S_IRUGO, show_busnum, NULL); + static ssize_t show_devnum(struct device *dev, struct device_attribute *attr, char *buf) { @@ -347,6 +357,7 @@ static struct attribute *dev_attrs[] = { &dev_attr_bNumConfigurations.attr, &dev_attr_bMaxPacketSize0.attr, &dev_attr_speed.attr, + &dev_attr_busnum.attr, &dev_attr_devnum.attr, &dev_attr_version.attr, &dev_attr_maxchild.attr,