A simple script like: echo "1" > /dev/ttyUSB0 stopped to work after upgrading my system to a custom compiled version of kernel 2.6.35. There are no errors in syslog or dmesg and the pl2303 loads without complains, but strace shows that open("/dev/ttyUSB0",...) blocks forever. I guess it must be some wrong parameter in the compilation, but I'm blind trying to find the solution. Any ideas, Regards, Enrique -- 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