On Tue, 26 Apr 2005, Grant Grundler wrote: > On Tue, Apr 26, 2005 at 12:07:41PM -0400, Richard B. Johnson wrote: > > DMAs don't go on "forever" > > They don't. But we also don't know when they will stop. > E.g. NICs will stop DMA when the RX descriptor ring is full. > I don't know when USB stop on it's own.
USB doesn't stop DMA on its own. It goes on forever until it's told to stop or it encounters an error. Alan Stern ------------------------------------------------------- SF.Net email is sponsored by: Tell us your software development plans! Take this survey and enter to win a one-year sub to SourceForge.net Plus IDC's 2005 look-ahead and a copy of this survey Click here to start! http://www.idcswdc.com/cgi-bin/survey?id=105hix _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
