Hi, Has anyone got any tips to track down a problem where some usb devices "magically" appear to be unplugged, then re-appear moments later and are restarted correctly by my libusb daemon/server task. My setup is linux 2.6.9 (RHEL4.5) and libusb 0.1.12. The USB devices are simply USB 1.1 devices using the Intel 8051 device. In the past the same devices were used on a Windows PC and worked fine. The reason for moving it to Linux was to merge control of these devices with the underlying software that uses them. I have tried very recent versions of the Linux kernel, namely 2.6.27, but couldn't see any improvement - part of the problem is that the problem seemingly happens randomly. I am in the process of rewriting the libusb part of the daemon/server task to use the recent re-write of libusb, namely, libusb-1.0. Regards, Peter. -- 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