com_read_1
.com_read_1 = sc16is7xx_i2c_com_read_1,
regs->cr_read = com_read_1;
sc->sc_com.sc_regs.cr_read = psc->sc_com_funcs->com_read_1;
uint8_t(*com_read_1)(struct com_regs *, u_int);
.com_read_1 = sc16is7xx_spi_com_read_1,