@@ -138,6 +138,15 @@ static void uvc_fixup_video_ctrl(struct uvc_streaming *stream,
bandwidth /= 8;
bandwidth += 12;
+ /* The bandwidth estimate is too low for many cameras. Don't use
+ * maximum packet sizes lower than 1024 bytes to try and work
+ * around the problem. According to measurements done on two
+ * different camera models, the value is high enough to get most
+ * resolutions working while not preventing two simultaneous
+ * VGA streams at 15 fps.
+ */
+ bandwidth = max_t(u32, bandwidth, 1024);
+
ctrl->dwMaxPayloadTransferSize = bandwidth;
}
}