Oliver: For SCSI devices, the autosuspend idle-delay time will have to vary from under one second up to an hour or so. The current USB /sys/.../power/autosuspend format, which simply lists the timeout in seconds, won't be adequate. I thought the format could be changed to [MM:]SS[.FFF] where MM is minutes, SS is seconds, and FFF is milliseconds. It would be backward compatible with the existing format for input, although the output appearance would be different. The same format could be used for USB as well (in fact, the attribute set and show routines could go in the PM core, making them easy to share among subsystems). What do you think? For that matter, it might be a good idea to move the last_busy and autosuspend_delay fields into the dev_pm_info structure, along with the other runtime PM stuff. Since they are going to be used by both SCSI and USB, they probably will get used by other subsystems as well. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
