Hi every body I'm working on s5pv210 analog TV-out on Linux. I can see the related drivers in the kernel source code. (drivers/media/video/samsung/tv20/) But I'm not sure if they have been tested and work properly. I studied the source codes and here are some points: It seems that the write() function does noting and can not be used to directly produce some patterns on the screen. Also, VIDIOC_S_FMT ioctl needs the address of the place it can find the images to display. But actually I can't figure out how to make it work and where to find the address of fb to pass and so forth. I also found a tv_test application (user-space) source code for doing something similar for mini6410. But s3c6410 kernel side is different to that of s5pv210. Have anybody succeeded to use the TV-enc of s5pv210 under Linux? And is there any useful resource, starting point, source code or any related material to work with? Any help would greatly be appreciated.