tegra_ivc_header_write_field
tegra_ivc_header_write_field(&ivc->tx.map, tx.count, count + 1);
tegra_ivc_header_write_field(&ivc->rx.map, rx.count, count + 1);
tegra_ivc_header_write_field(&ivc->tx.map, tx.state, TEGRA_IVC_STATE_SYNC);
tegra_ivc_header_write_field(&ivc->tx.map, tx.count, 0);
tegra_ivc_header_write_field(&ivc->rx.map, rx.count, 0);
tegra_ivc_header_write_field(&ivc->tx.map, tx.state, TEGRA_IVC_STATE_ACK);
tegra_ivc_header_write_field(&ivc->tx.map, tx.count, 0);
tegra_ivc_header_write_field(&ivc->rx.map, rx.count, 0);
tegra_ivc_header_write_field(&ivc->tx.map, tx.state, TEGRA_IVC_STATE_ESTABLISHED);
tegra_ivc_header_write_field(&ivc->tx.map, tx.state, TEGRA_IVC_STATE_ESTABLISHED);