Why can't I connect to 8080 port for UVC webcam stream

Hardware Arduino Yún
1

Hi all:

http://ibuyopenwrt.com/index.php/8-yun-compatible/69-mjpeg-stream-video

http://ibuyopenwrt.com/index.php/8-yun-compatible/60-uvc-webcam

I have gone through these steps to setup my webcam to 8080.

but localhost:8080 always shows this, does somebody have a solution?

404: Not Found!
Invalid input plugin number

root@arduino:/etc/init.d# mjpg_streamer enable
MJPG Streamer Version: svn rev: exported
 o: www-folder-path...: disabled
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

root@tim:/etc/init.d# lsusb
---
Bus 001 Device 003: ID 0ac8:3313 Z-Star Microelectronics Corp.
---
2

Some camera output YUV data, not mpeg(default).
so -yuv must be added.

mjpg_streamer -i "input_uvc.so -d /dev/video0 -r 160*120 -f 30 -yuv" -o "output_http.so -w /www/webcam"