On 12/4/06, Alan <alan@xxxxxxxxxxxxxxxxxxx> wrote:
The nIEN bit in the device registers control interrupt generation on ATA devices. However ATA devices don't generate interrupts except on command completion or during command processing so if you have no I/O outstanding you won't have any interrupts anyway. With funky new stuff like AHCI and NCQ this isn't so simple but for simple ATA as with the ata_piix driver it is.
How do I go about setting/clearing this nIEN bit from my own module? Open a handle to /dev/sda and calling some or other IOCTL, perhaps? ( I haven't accessed the HDD on this low level before, so I would appreciate some details, or perhaps a small example). Thanks Thinus - 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
