void usb_create_sysfs_intf_files (struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_host_interface *alt = intf->cur_altsetting;
sysfs_create_group(&intf->dev.kobj, &intf_attr_grp);
if (alt->string == NULL)
alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string)
device_create_file(&intf->dev, &dev_attr_interface);
usb_create_intf_ep_files(intf, udev);
}
int usb_create_sysfs_intf_files(struct usb_interface *intf)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_host_interface *alt = intf->cur_altsetting;
int retval;
if (intf->sysfs_files_created)
return 0;
/* The interface string may be present in some altsettings
* and missing in others. Hence its attribute cannot be created
* before the uevent is broadcast.
*/
if (alt->string == NULL)
alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string)
retval = device_create_file(&intf->dev, &dev_attr_interface);
usb_create_intf_ep_files(intf, udev);
intf->sysfs_files_created = 1;
return 0;
}
int usb_create_sysfs_intf_files(struct usb_interface *intf)
{
struct device *dev = &intf->dev;
struct usb_device *udev = interface_to_usbdev(intf);
struct usb_host_interface *alt = intf->cur_altsetting;
int retval;
if (intf->unregistering)
return 0;
retval = sysfs_create_group(&dev->kobj, &intf_attr_grp);
if (retval)
return retval;
if (alt->string == NULL)
alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string)
retval = device_create_file(dev, &dev_attr_interface);
if (intf->intf_assoc)
retval = sysfs_create_group(&dev->kobj, &intf_assoc_attr_grp);
usb_create_intf_ep_files(intf, udev);
return 0;
}
