Hi, Do you ever noticed that the ATAPI command TEST_UNIT_READY always fails to execute !? I debugged in the following environments: piix + Intel ICH6/ICH7 PATA atiixp + ATI SB600 PATA libata + ata_piix + Intel ICH6/ICH7 PATA libata + sata_sil24 + Silicon Image 3132 libata + ahci + ATI SB600 SATA libata + ahci + Intel AHCI but none of them can execute TEST_UNIT_READY command successfully. For example, in ahci driver, ahci_interrupt() reads port status as 0x4000_0000, which indicates an taskfile error.
Conke - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/