v4l2_clk_set_rate  223 drivers/media/v4l2-core/v4l2-clk.c EXPORT_SYMBOL(v4l2_clk_set_rate);
v4l2_clk_set_rate   51 include/media/v4l2-clk.h int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate);