uas: Move uas_find_endpoints to uas-detect.h
No changes, just the move.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index 082bde1..8de030a 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -40,6 +40,33 @@
return -ENODEV;
}
+static int uas_find_endpoints(struct usb_host_interface *alt,
+ struct usb_host_endpoint *eps[])
+{
+ struct usb_host_endpoint *endpoint = alt->endpoint;
+ unsigned i, n_endpoints = alt->desc.bNumEndpoints;
+
+ for (i = 0; i < n_endpoints; i++) {
+ unsigned char *extra = endpoint[i].extra;
+ int len = endpoint[i].extralen;
+ while (len >= 3) {
+ if (extra[1] == USB_DT_PIPE_USAGE) {
+ unsigned pipe_id = extra[2];
+ if (pipe_id > 0 && pipe_id < 5)
+ eps[pipe_id - 1] = &endpoint[i];
+ break;
+ }
+ len -= extra[0];
+ extra += extra[0];
+ }
+ }
+
+ if (!eps[0] || !eps[1] || !eps[2] || !eps[3])
+ return -ENODEV;
+
+ return 0;
+}
+
static int uas_use_uas_driver(struct usb_interface *intf,
const struct usb_device_id *id)
{