![]() Unload ehci_hcd with 'sudo modprobe -r ehci_hcd'ħ. Comfirm with the 'dmesg' command that it isn't functioning properly. If the device is recognised and mounted properly try copying a file to it.ģ. Insert your USB 2.0 device (like a flash drive)Ģ. In some devices it fails after writing a certain amount of data, probably the size of the write cache.ġ. copy files from an USB pendrive to the computer), but the device disconnects abrubtly when you start writing data on the device. With some devices it is possible to read files normally (ie. This works fine but unfortunatly ehci-hcd is necessary for using USB 2.0, so you lose USB 2.0 features.Īnother solution is to disable USB 2.0 through the BIOS setup. ![]() ![]() Certain USB devices do not work properly, or do not work at all, while the ehci_hcd module is loaded.Ī solution is to unload the ehci_hcd module, which is loaded every time the computer starts, using the command 'sudo modprobe -r ehci_hcd'. ![]()
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