On Tue, 12 Sep 2006, Alexandre Gatelli wrote: > I have a Asus A7N8X-XE, with NForce2 chipset, and I'm using Ubuntu > 6.06. > My printer support usb 2.0 (I was confirm this in usbview). But it > connect at 12 M/s (in usb 1.1 ohci, and not in usb 2.0 ehci).
Probably the printer does not support 480 Mb/s but only 12 Mb/s. Remember, it's perfectly legal for a USB 2.0 device to operate only at the lesser speed. > Is there a way for switch the usb bus where it is connected to ehci? Not if the printer doesn't support it. > The 8 usb ports of this motherboard are shared in 3 onboard hubs: 4 and > 4 ports ohci and 8 ports ehci. > I thing that linux is uning only ohci hubs, and don't attrib devices on > ehci hub. > Both ohci_hcd and ehci_hcd are loaded on memory. > I'm see the same problem in Windows system with this motherboard. And probably for the same reason: The printer doesn't support 480 Mb/s. Alan Stern ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
