diff options
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 7041cc950737..226557362d36 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -106,6 +106,13 @@ usb_find_common_endpoints(struct usb_host_interface *alt, struct usb_endpoint_descriptor **int_in, struct usb_endpoint_descriptor **int_out); +int __must_check +usb_find_common_endpoints_reverse(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **bulk_in, + struct usb_endpoint_descriptor **bulk_out, + struct usb_endpoint_descriptor **int_in, + struct usb_endpoint_descriptor **int_out); + static inline int __must_check usb_find_bulk_in_endpoint(struct usb_host_interface *alt, struct usb_endpoint_descriptor **bulk_in) @@ -134,6 +141,34 @@ usb_find_int_out_endpoint(struct usb_host_interface *alt, return usb_find_common_endpoints(alt, NULL, NULL, NULL, int_out); } +static inline int __must_check +usb_find_last_bulk_in_endpoint(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **bulk_in) +{ + return usb_find_common_endpoints_reverse(alt, bulk_in, NULL, NULL, NULL); +} + +static inline int __must_check +usb_find_last_bulk_out_endpoint(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **bulk_out) +{ + return usb_find_common_endpoints_reverse(alt, NULL, bulk_out, NULL, NULL); +} + +static inline int __must_check +usb_find_last_int_in_endpoint(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **int_in) +{ + return usb_find_common_endpoints_reverse(alt, NULL, NULL, int_in, NULL); +} + +static inline int __must_check +usb_find_last_int_out_endpoint(struct usb_host_interface *alt, + struct usb_endpoint_descriptor **int_out) +{ + return usb_find_common_endpoints_reverse(alt, NULL, NULL, NULL, int_out); +} + /** * struct usb_interface - what usb device drivers talk to * @altsetting: array of interface structures, one for each alternate |