On Sat, 26 Nov 2011, Sergey Spiridonov wrote: > Hi > > 26.11.2011 02:22, Alan Stern пишет: > > > It probably _is_ working. Your problem is that you have too many > > non-high-speed devices attached to the same hub. Error -22 is -ENOSPC, > > which means insufficient bandwidth. Try unplugging some of the other > > USB keyboards, or plug this one directly into the computer rather than > > into a hub, and you should find that it is perfectly okay. > > I tried to connect keyboard directly to the USB port on mainboard and > also to my notebook. Notebook has only one mouse connected. > Unfortunately this does not help. Telling me about it doesn't do much good if you don't include any debugging information, such as the dmesg log and perhaps also the usbmon trace. Try the notebook, since it doesn't have lots of other USB devices to confuse the issue. In fact, try unplugging the mouse from the notebook before plugging in the keyboard. > If I understood right, this is hardware error? No, it isn't. Lack of bandwidth just means there are too many devices attached. > So if this would be > bandwidth problem, then Windows XP will also have same problem? Or this > is not hardware error and it works with Windows because Widows has > another way to compute available bandwidth? I'm afraid you won't find too much information about the internal workings of Windows when you post on a Linux mailing list. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
