Ok. I unbinded it, but when I binded it again, the same problem happened. It gave me those error messages =( So I guess unbinding/binding doesn't have the same effect as manually unplugging/plugging... Any other suggestions?
Thank you a lot for helping me! Paulo. > On Fri, 7 Jul 2006, Paulo R. Zanoni wrote: > >> We've been analyzing the usb module files, especifically the file >> driver/usb/core/hub.c . Looking at the function usb_reset_device (the >> last >> one on the file), I saw that there is a variable called udev->state, and >> one of its state is "USB_STATE_NOTATTACHED". I (still) don't understand >> how udev, or usb, or anything works, but I've been thinking: >> Is there a way to change the usb state to usb_state_notattached, and >> then >> change it back to "attached"? > > No, there is no way to do this. The USB core won't allow the state to be > changed once it is equal to USB_STATE_NOTATTACHED. > >> To execute all the functions that are >> executed when the device gets attached... > > Yes, you can do that. There are actually two steps involved; one is to > rebind the hub driver and the other is to reset the hub. > > Rebinding the hub driver means unbinding it and then binding it. This is > what you do: > > echo -n NAME >/sys/bus/usb/drivers/hub/unbind > echo -n NAME >/sys/bus/usb/drivers/hub/bind > > where NAME is the name of the hub interface to rebind. Typically the name > looks something like "2-3.4:1.0". You can find the existing hub names by > doing > > ls /sys/bus/usb/drivers/hub > > but then you have to figure out which is the name of the hub you're > interested in. > > If that doesn't work, I'll post a program for resetting the hub. > > 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-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
