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path: root/drivers/usb/core
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Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/sysfs.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 4ab50009291..4d0c9e65cd0 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -290,32 +290,30 @@ static ssize_t show_modalias(struct device *dev, char *buf)
{
struct usb_interface *intf;
struct usb_device *udev;
+ int len;
intf = to_usb_interface(dev);
udev = interface_to_usbdev(intf);
- if (udev->descriptor.bDeviceClass == 0) {
- struct usb_host_interface *alt = intf->cur_altsetting;
- return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X\n",
+ len = sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic",
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct),
le16_to_cpu(udev->descriptor.bcdDevice),
udev->descriptor.bDeviceClass,
udev->descriptor.bDeviceSubClass,
- udev->descriptor.bDeviceProtocol,
+ udev->descriptor.bDeviceProtocol);
+ buf += len;
+
+ if (udev->descriptor.bDeviceClass == 0) {
+ struct usb_host_interface *alt = intf->cur_altsetting;
+
+ return len + sprintf(buf, "%02Xisc%02Xip%02X\n",
alt->desc.bInterfaceClass,
alt->desc.bInterfaceSubClass,
alt->desc.bInterfaceProtocol);
} else {
- return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic*isc*ip*\n",
- le16_to_cpu(udev->descriptor.idVendor),
- le16_to_cpu(udev->descriptor.idProduct),
- le16_to_cpu(udev->descriptor.bcdDevice),
- udev->descriptor.bDeviceClass,
- udev->descriptor.bDeviceSubClass,
- udev->descriptor.bDeviceProtocol);
+ return len + sprintf(buf, "*isc*ip*\n");
}
-
}
static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);