Signed-off-by: Laurent Pinchart <[email protected]>
---
drivers/usb/gadget/f_uvc.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c
index 2a8bf06..1cf336b 100644
--- a/drivers/usb/gadget/f_uvc.c
+++ b/drivers/usb/gadget/f_uvc.c
@@ -808,7 +808,10 @@ uvc_bind_config(struct usb_configuration *c,
uvc->desc.hs_streaming = hs_streaming;
uvc->desc.ss_streaming = ss_streaming;
- /* maybe allocate device-global string IDs, and patch descriptors */
+ /* String descriptors are global, we only need to allocate string IDs
+ * for the first UVC function. UVC functions beyond the first (if any)
+ * will reuse the same IDs.
+ */
if (uvc_en_us_strings[UVC_STRING_ASSOCIATION_IDX].id == 0) {
/* Allocate string descriptor numbers. */
ret = usb_string_id(c->cdev);
--
1.7.8.6
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