Hello, Anand Kulkarni wrote: > Hi, > > Attached is a patch to allow HDIO_DRIVE_TASKFILE ioctl calls to libata > devices so that arbitrary ATA commands that need PIO data transfers in > either direction can be issued. I have tested it with linux kernel > 2.6.20. The format of the input arguments is the same as for the > regular ATA HDIO_DRIVE_TASKFILE ioctl : Code that makes ioctl calls to > ATA devices on /dev/hda can be sent as is to SATA devices on /dev/sda. > > Since this is the first time I am sending a patch, please let me know > if I should do anything differently. I was kind of hoping we could drop HDIO_DRIVE_TASKFILE. Please take a look at the HDIO_DRIVE_TASKFILE section of Documentation/ioctl/hdio.txt. That's one scary scary ioctl and we still haven't sorted out which are features and which are bugs. For backward compatibility HDIO_DRIVE_CMD and HDIO_DRIVE_TASK are implemented and most applications seem to be happy with it. If you need real fine control over command execution, the recommended way is to use SAT via SG_IO. -- tejun - 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
