[gentoo-amd64] Video for Linux - webcam

[Mansour Al Akeel]

I have been trying to get the webcam to work on:

Linux mars 2.6.29-gentoo-r5 #1 SMP Sat Aug 8 13:33:30 ADT 2009 x86_64 
AMD Athlon(tm) 64 X2 Dual-Core Processor TK-53 AuthenticAMD GNU/Linux

lsusb
Bus 002 Device 001: ID 1d6b:0001
Bus 001 Device 002: ID 05ca:1810 Ricoh Co., Ltd
Bus 001 Device 001: ID 1d6b:0002

I enabled V4L in the Kernel and enabled API 1.0.
Then I installed the driver as in :

http://forums.gentoo.org/viewtopic-t-768893.html?sid=57e3dbf52a9be44c18f4f779069802ab

Now, when I try this:
==============================================================
mplayer -fps 15 tv:// -tv  driver=v4l2:device=/dev/v4l/video0
MPlayer 29040-4.1.2 (C) 2000-2009 MPlayer Team

Playing tv://.
TV file format detected.
No such driver: v4l2


Exiting... (End of file)
==============================================================

So I tried without specifying a driver:

$ mplayer -fps 25 tv:// -tv device=/dev/video

MPlayer 29040-4.1.2 (C) 2000-2009 MPlayer Team

Playing tv://.
TV file format detected.
Selected driver: dummy
  name: NULL-TV
  author: alex
  comment:
Selected input hasn't got a tuner!
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 320 x 200 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 320x200 => 320x200 Planar YV12
Selected video codec: [rawyv12] vfm: raw (RAW YV12)
==========================================================================
Audio: no sound
FPS forced to be 25.000  (ftime: 0.040).
Starting playback...
V:   1.0  73/ 73  0%  6%  0.0% 0 0
V:   1.0  82/ 82  0%  6%  0.0% 0 0

Exiting... (End of file)


I got a small window, with a green color and nothing else. I will 
appreciate any advice, as I don't want to keep booting to windows, only 
for this. :)
Thanks