[PATCH 1/6] usb: gadget/uvc: Clarify comment about string descriptors

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Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
 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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