On Monday 15 March 2010, Alan Stern wrote: > On Mon, 15 Mar 2010, Rafael J. Wysocki wrote: > > > In fact, I'd like the "legacy" callbacks to go, at least at the subsystem > > level, so I'd prefer not to make it easier to keep them around. > > > > How many bus types are there and how many of them actually implement power > > management callbacks? I don't really think the issue is so big. > > I have no idea. But I'm in the middle of implementing runtime PM for > SCSI. SCSI already has bus-level legacy callbacks, so to add the > runtime methods without changing the existing system sleep behavior > requires something like this. > > The alternative is to write a bunch of tiny "shim" functions, sort of > like what I ended up doing in the USB stack (see usb_dev_prepare() and > the following routines in drivers/usb/core/usb.c).
I prefer this approach to changing the core. If we changed the core, it would defeat the whole purpose of introducing the new framework. Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
