VCR_CI_ENABLE
viacam_write_reg(cam, VCR_CAPINTC, ~(VCR_CI_ENABLE|VCR_CI_CLKEN));
viacam_write_reg_mask(cam, VCR_CAPINTC, VCR_CI_ENABLE, VCR_CI_ENABLE);
viacam_write_reg_mask(cam, VCR_CAPINTC, 0, VCR_CI_ENABLE);