RADEON_TV_LINEAR_GAIN_SETTINGS
OUTREG( ai->regs, RADEON_TV_LINEAR_GAIN_SETTINGS,
Radeon_VIPWrite( ai, ai->si->theatre_channel, RADEON_TV_LINEAR_GAIN_SETTINGS,
{ RADEON_TV_LINEAR_GAIN_SETTINGS, offsetof( impactv_regs, tv_linear_gain_settings ) },