Right, this particular subthread was a detour. I pointed out that since we have the probe/claim/disconnect stuff, we don't _need_ refcounting elsewhere in the driver API.
In the interest of keeping APIs simple/manageable I'd accordingly rather see it go away. But having this API there, unused except inside usbcore, wouldn't exactly a lead weight ... :) - Dave ----- Original Message ----- From: "Johannes Erdfelt" <[EMAIL PROTECTED]> To: "David Brownell" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, May 13, 2002 5:34 PM Subject: Re: [linux-usb-devel] Re: [patch] 2.5.15 USB device reference counting > On Mon, May 13, 2002, David Brownell <[EMAIL PROTECTED]> wrote: > > > > We _have_ that protection because only device drivers that > > > > claim an interface, perhaps via probe(), are allowed to use > > > > that device. To repeat: the protection doesn't need to be > > > > explicit in the driver programming interfaces. > > > > > > > > On the other hand, usbdevfs doesn't necessarily bother to > > > > claim interfaces when it makes control calls. Since that's > > > > internal to usbcore, I don't think that undermines my point. > > > > It's already got its fingers in lots of places "real drivers" > > > > aren't allowed to go. > > > > > > Actually, it does undermine your point. To make it work we need > > > reference counting. > > > > Not in the _device driver_ programming interface though, just > > internal to the usbcore code (which includes usbfs). > > > > Yes, I said that already. > > Gotcha. > > While I don't think we should make device driver programming more > complicated that it needs to be, especially for the common case, I > don't see why we should let device drivers access to reference > counting if they want to. > > JE > > > _______________________________________________________________ > > Have big pipes? SourceForge.net is looking for download mirrors. We supply > the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] > _______________________________________________ > [EMAIL PROTECTED] > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel _______________________________________________________________ Have big pipes? SourceForge.net is looking for download mirrors. We supply the hardware. You get the recognition. Email Us: [EMAIL PROTECTED] _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
