driver source https://github.com/skyrocknroll/CH341SER_LINUX link to zipped Makefile README.md ch34x.c https://github.com/skyrocknroll/CH341SER_LINUX/archive/master.zip patching source http://mintlinux.ru/forum/thread12636.html 1. sudo apt-get source linux-source-3.19.0 linux-headers-$(uname -r) 2. cd /tmp 3. tar -xjf /usr/src/linux-source-3.19.0.tar.bz2 4. cd /usr/src/linux-headers-3.19.0-32/ 5. make oldconfig 6. make prepare 7. make scripts 8. cp -v /usr/src/linux-headers-$(uname -r)/Module.symvers . 9. cp /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko.orig 10. cd drivers/usb/serial 11. cp ch341.c ch341.c.orig 12. wget https://github.com/karlp/ch341-linux/raw/master/0001-usb-serial-ch341-Add-parity-support.patch 13. cat 0001-usb-serial-ch341-Add-parity-support.patch | patch -p4 14. patching file ch341.c 15. Hunk #1 succeeded at 349 (offset 3 lines). 16. Hunk #2 succeeded at 370 (offset 3 lines). 17. make -C /lib/modules/$(uname -r)/build M=$(pwd) modules 18. sudo cp ch341.ko /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko 19. sudo rmmod ch341 20. sudo modprobe ch341 how i make it first install everything nedeed for make cd /tmp wget https://github.com/skyrocknroll/CH341SER_LINUX/archive/master.zip unzip here cp /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko.orig cp ch341.c ch341.c.orig wget https://github.com/karlp/ch341-linux/raw/master/0001-usb-serial-ch341-Add-parity-support.patch cat 0001-usb-serial-ch341-Add-parity-support.patch | patch -p4 patching file ch341.c Hunk #1 succeeded at 349 (offset 3 lines). Hunk #2 succeeded at 370 (offset 3 lines). make -C /lib/modules/$(uname -r)/build M=$(pwd) modules sudo cp ch341.ko /lib/modules/$(uname -r)/kernel/drivers/usb/serial/ch341.ko sudo rmmod ch341 sudo modprobe ch341 it work on raspbian jessie 4.4.9 pathed version ch341-4.9.28.ko rename it to ch341.ko then replace original module in /lib/modules/$(uname -r)/kernel/drivers/usb/serial/