card->gpio_mode = 0x0400c060;
                /* should be: BT878_A_GAIN=0,BT878_A_PWRDN,BT878_DA_DPM,BT878_DA_SBR,
                              BT878_DA_IOM=1,BT878_DA_APP to enable serial highspeed mode. */
-               card->op_sync_orin = 0;
-               card->irq_err_ignore = 0;
+               card->op_sync_orin = BT878_RISC_SYNC_MASK;
+               card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
                break;
 
        case BTTV_BOARD_DVICO_DVBT_LITE:
                card->gpio_mode = 0x0400C060;
-               card->op_sync_orin = 0;
-               card->irq_err_ignore = 0;
+               card->op_sync_orin = BT878_RISC_SYNC_MASK;
+               card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
                /* 26, 15, 14, 6, 5
                 * A_PWRDN  DA_DPM DA_SBR DA_IOM_DA
                 * DA_APP(parallel) */
        case BTTV_BOARD_NEBULA_DIGITV:
        case BTTV_BOARD_AVDVBT_761:
                card->gpio_mode = (1 << 26) | (1 << 14) | (1 << 5);
-               card->op_sync_orin = 0;
-               card->irq_err_ignore = 0;
+               card->op_sync_orin = BT878_RISC_SYNC_MASK;
+               card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
                /* A_PWRDN DA_SBR DA_APP (high speed serial) */
                break;
 
        case BTTV_BOARD_AVDVBT_771: //case 0x07711461:
                card->gpio_mode = 0x0400402B;
                card->op_sync_orin = BT878_RISC_SYNC_MASK;
-               card->irq_err_ignore = 0;
+               card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
                /* A_PWRDN DA_SBR  DA_APP[0] PKTP=10 RISC_ENABLE FIFO_ENABLE*/
                break;
 
 
        case BTTV_BOARD_PC_HDTV:
                card->gpio_mode = 0x0100EC7B;
-               card->op_sync_orin = 0;
-               card->irq_err_ignore = 0;
+               card->op_sync_orin = BT878_RISC_SYNC_MASK;
+               card->irq_err_ignore = BT878_AFBUS | BT878_AFDSR;
                break;
 
        default: