On Fri, Feb 20, 2015 at 11:22:54AM +0100, Milutin Aksic wrote: > Hello Greg, > I supose that serial communication should work with this older model > gt-s5570. I found custom rom with that old kernel version but I don't > know how to find newer version for this phone. > When I plug the converter to phone I can't see anything in the log that > is related to converter but I send you the log as attachment. It is log > when I insmod pl2303.ko via adb and after that pluged the converter. Looks like you haven't loaded a usb host controller driver for your hardware. Are you sure you have such a thing loaded and working? Does other types of USB devices work when plugged into this machine? You really are on your own here, sorry. greg k-h -- 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