Display data on frame buffer

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http://stackoverflow.com – I have a rooted android device and in my native code i have pointer to a buffer that holds the pixel data. Now my task is dump this pixel data onto the frame buffer in order to display it. I'm very new to linux environment so i hardly have information regarding the same. I googled and found that ioctl() may help but didnt find more details about the same. If someone has worked on a similar requirement and issue please provide some links or answers. Also any suggestion to do the same shall be appreciated. Thanks in advance. (HowTos)