On Sun, 30 Sep 2012, Jeff Garzik wrote: > The simple fact of "only ZPODD devices out there are ATA" is not the > decision-maker for where the code should live. It is more a question > where ZPODD belongs in the device/command set model currently employed. I don't really accept this argument. It's a little like saying: The tty layer uses ioctl commands to control RS232 line settings; therefore RS232 settings should be handled in the VFS layer as part of the ioctl core. Regardless, according to Aaron the ZP power-off stuff is currently implemented only in ACPI, tied more closely to the ATA layer than the SCSI layer (though not part of either). It is not part of the SCSI spec in any form. Now it's true that determining whether a device is in the right state for power to be removed involves sending a TEST UNIT READY command, which is of course a SCSI command. This seems to be incidental to the overall scheme, however. Alan Stern -- 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
