dunneil wrote: > if there are two ASATA controller inside motherboard, it will cause > conflict > for BUS Master Enable bit? Do i need disable the motherboard integrated > ASATA controoller for my separate ASATA controller FPGA board? You can have as many AHCI PCI devices as you wish. Each PCI device has its own Bus Master Enable bit in the PCI Command register. Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html