TEGRA_CAMERA_IOCTL_ENABLE:          enable clock
usage:
     uint clock_id;
     ioctl(fd, TEGRA_CAMERA_IOCTL_ENABLE , &clock_id);

     inputs:

     Clock ID

     outputs:      none

     error return:

     notes: a dummy ioctl for backward compatibility. Doesn't do anything.



TEGRA_CAMERA_IOCTL_DISABLE:          disable clock
usage:
     uint clock_id;
     ioctl(fd, TEGRA_CAMERA_IOCTL_DISABLE , &clock_id);

     inputs:

     Clock ID

     outputs:      none

     error return:

     notes: a dummy ioctl for backward compatibility. Doesn't do anything.

TEGRA_CAMERA_IOCTL_RESET:          reset clock
usage:
     uint clock_id;
     ioctl(fd, TEGRA_CAMERA_IOCTL_RESET , &clock_id);

     inputs:

     Clock ID

     outputs:      none

     error return:

     notes: a dummy ioctl for backward compatibility. Doesn't do anything.


TEGRA_CAMERA_IOCTL_CLK_SET_RATE:          set clock rate

struct tegra_camera_clk_info {
        uint id;
        uint clk_id;
        unsigned long rate;
        uint flag;
};

usage:
     tegra_camera_clk_info clock_info;
     ioctl(fd, TEGRA_CAMERA_IOCTL_CLK_SET_RATE , &clock_info);

     inputs:

     Information about the clock and new rate

     outputs:      none

     error return:
     EINVAL      - out of range input data