Mark Lord wrote: > Tejun Heo wrote: >> As _GTF commands can't transfer data, device error never signals >> transfer error. It indicates that the device vetoed the operation, so >> it's meaningless to retry. > .. > > The SECURITY commands may pass a data block to the drive, > containing the password required to unlock/freeze a drive. > I suspect ACPI on many machines will issue such a command, > and it does indeed transfer data (512 bytes). Surprise, ACPI _GTF can't do that. Don't ask me why. :-) -- 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
