pru_control_read_reg
val = pru_control_read_reg(pru, reg);
pru_control_read_reg(pru, PRU_CTRL_CTRL));
pru_sts = pru_control_read_reg(pru, PRU_CTRL_STS);
pru_control_read_reg(pru, PRU_CTRL_WAKEUP_EN));
pru_control_read_reg(pru, PRU_CTRL_CYCLE));
pru_control_read_reg(pru, PRU_CTRL_STALL));
pru_control_read_reg(pru, PRU_CTRL_CTBIR0));
pru_control_read_reg(pru, PRU_CTRL_CTBIR1));
pru_control_read_reg(pru, PRU_CTRL_CTPPR0));
pru_control_read_reg(pru, PRU_CTRL_CTPPR1));
pru_is_running = pru_control_read_reg(pru, PRU_CTRL_CTRL) &
reg_val = pru_control_read_reg(pru, PRU_CTRL_CTRL);
val = pru_control_read_reg(pru, PRU_CTRL_CTRL);