Dan Streetman wrote: > I have to agree with JE, there should be a common API for drivers to > reserve bandwidth on a per-ep basis, and then any URBs submitted are > guaranteed not to fail from a shortage of bandwidth.
(I didn't get such a message from him.) That's no change from today, unless you mean "new API". Since some point in the 2.3 development cycle, device drivers use the common usb_submit_urb() API to request bandwidth. And that bandwidth is released when that URB's endpoint is no longer active. It's a simple model that works ... and should continue to work. > However, I don't think BW can be calculated effectively by common code, it > is dependent on the HCD. That's how it behaves already, with the different HCDs putting more or less work into their scheduling policy. - Dave ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
