From 7521803dcc0137668bb30483383092a647671d8b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 20 Jun 2005 21:15:16 -0700 Subject: [PATCH] USB: always export interface information for modalias This fixes a problem with some cdc acm devices that were not getting automatically loaded as the module alias was not being reported properly. This check was for back in the days when we only reported hotplug events for the main usb device, not the interfaces. We should always give the interface information for MODALIAS/modalias as it can be needed. Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/sysfs.c | 35 ++++++++++++++--------------------- 1 file changed, 14 insertions(+), 21 deletions(-) (limited to 'drivers/usb/core/sysfs.c') diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index eae413bf8c2..4bdbc9df6e0 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -462,30 +462,23 @@ static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, { struct usb_interface *intf; struct usb_device *udev; - int len; + struct usb_host_interface *alt; intf = to_usb_interface(dev); udev = interface_to_usbdev(intf); - - 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); - 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 len + sprintf(buf, "*isc*ip*\n"); - } + alt = intf->cur_altsetting; + + return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02X" + "ic%02Xisc%02Xip%02X\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, + alt->desc.bInterfaceClass, + alt->desc.bInterfaceSubClass, + alt->desc.bInterfaceProtocol); } static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL); -- cgit v1.2.3-18-g5258