Function interruptible_sleep_on_timeout has been removed in kernel version 3.15.ch341 driverd outdated

[yonghuming]

https://stackoverflow.com/questions/30017344/moxa-realtty-module-compilation-error-on-linux-kernel-3-16

So could any update the ch341x.c to make driver usable for ubuntu 17.04
thank you very muchk