On Thu, Jan 16, 2003 at 12:34:36AM +0100, Oliver Neukum wrote: > Hi, > > I'd like to propose a small further patch. > > I want to bind URBs to usb_devices at allocation. > usb_alloc_urb (int i, int mem_flags) -> > usb_alloc_urb (struct usb_device *dev, int i, int mem_flags) > and usb_fill_* loose the struct usb_device references. > > Explanation: > The HCDs allocate and deallocate data structures during every submission. > This is wasteful, but as long as an URB can be sent to several devices, it > is unavoidable, because the devices may be be on busses controlled by > different HCDs.
So you would do the allocation at usb_alloc_urb() time instead? Do you have any statistics that show the current implementation is actually slowing anything down? thanks, greg k-h ------------------------------------------------------- This SF.NET email is sponsored by: A Thawte Code Signing Certificate is essential in establishing user confidence by providing assurance of authenticity and code integrity. Download our Free Code Signing guide: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0028en _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
