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-rw-r--r--include/linux/usb.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 6af3581e111..e101a2d04d7 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -619,6 +619,10 @@ extern struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev,
unsigned ifnum);
extern struct usb_host_interface *usb_altnum_to_altsetting(
const struct usb_interface *intf, unsigned int altnum);
+extern struct usb_host_interface *usb_find_alt_setting(
+ struct usb_host_config *config,
+ unsigned int iface_num,
+ unsigned int alt_num);
/**