This change makes sure that the control value coming with the s_ctrl ioctl is passed along to the back-end along with the rest of the event. Also, the return value is copied back into the v4l2_control structure for HAL's usage. Change-Id: I2e1df270bff0cd1ce67da4490dff57d9bce6dc16 Signed-off-by: Ankit Premrajka <ankitp@codeaurora.org>