Re: [linux-usb-devel] question on flushing buffers and spinning down disk
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.scsi,gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Am Donnerstag 27 September 2007 schrieb Alan Stern: > There's also a philosophical objection. Who is in a better position to > judge when a device like a SCSI drive should be autosuspended: its own > driver (sd) or someone else (usb-storage)? Then a philosophical answer. The highest entity which understands what it is doing when using power management. Highest here to be understood not as a position in the device tree, but in the flow of information. That is in our case usb-storage. Sr or sd can't do it because they don't and can't understand power management. Now they might be asked to provide some helpers. An open count and notifications about the state of the queue would be obvious. Other suggestions? Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html