Il est effectivement dans le 2.6.26 (et supérieurs):
#find /usr/src -name "uvc*"
/usr/src/linux-source-2.6.26/drivers/media/video/uvc
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_ctrl.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_video.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_status.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_isight.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_driver.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvcvideo.h
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_queue.c
/usr/src/linux-source-2.6.26/drivers/media/video/uvc/uvc_v4l2.c
Donc, si tu as les sources d’installées, recompile le driver comme indiqué dans le lien.