UI2C_IOCTL_SMBUS_REQ
if (ioctl(req->sir_port->port_fd, UI2C_IOCTL_SMBUS_REQ, &smbus) != 0) {
if (ioctl(fd, UI2C_IOCTL_SMBUS_REQ, req) != 0) {
.info_ioctl = UI2C_IOCTL_SMBUS_REQ,
case UI2C_IOCTL_SMBUS_REQ: