Hi,
in SDG6 not support usb serial driver ?
Code:
satdreamgr 6 vuuno



vuuno login: root
root@vuuno:~# opkg update
Downloading http://188.165.252.42/feeds/satdreamgr-6/all/Packages.gz.
Updated source 'satdreamgr-all'.
Downloading http://188.165.252.42/feeds/satdreamgr-6/mips32el/Packages.gz.
Updated source 'satdreamgr-mips32el'.
Downloading http://188.165.252.42/feeds/picons/Packages.gz.
Updated source 'picons'.
Downloading http://188.165.252.42/feeds/satdreamgr-extra/Packages.gz.
Updated source 'satdreamgr-extra'.
Downloading http://188.165.252.42/feeds/satdreamgr-extra-mips32el/Packages.gz.
Updated source 'satdreamgr-extra-mips32el'.
Downloading http://188.165.252.42/feeds/satdreamgr-extra-vuuno/Packages.gz.
Updated source 'satdreamgr-extra-vuuno'.
Downloading http://188.165.252.42/feeds/satdreamgr-6/vuuno/Packages.gz.
Updated source 'satdreamgr-vuuno'.
root@vuuno:~# opkg upgrade
root@vuuno:~# opkg list | grep serial
boost-serialization - 1.61.0-r0 - Free peer-reviewed portable C++ source libraries  Free peer-reviewed
kernel-module-ark3116 - 3.9.6-r5.5.4 - ark3116 kernel module  ark3116 kernel module; USB ARK3116 serial/IrDA
 serial adaptor driver
kernel-module-f81232 - 3.9.6-r5.5.4 - f81232 kernel module  f81232 kernel module; Fintek F81232 USB to serial
 serial driver (1D)
 OTi-6858 USB to serial   adapter driver
kernel-module-pl2303 - 3.9.6-r5.5.4 - pl2303 kernel module  pl2303 kernel module; Prolific PL2303 USB to serial
kernel-module-qcserial - 3.9.6-r5.5.4 - qcserial kernel module  qcserial kernel module; Qualcomm USB Serial
kernel-module-safe-serial - 3.9.6-r5.5.4 - safe-serial kernel module  safe-serial kernel module; USB Safe
kernel-module-spcp8x5 - 3.9.6-r5.5.4 - spcp8x5 kernel module  spcp8x5 kernel module; SPCP8x5 USB to serial
kernel-module-symbolserial - 3.9.6-r5.5.4 - symbolserial kernel module  symbolserial kernel module
kernel-module-usbserial - 3.9.6-r5.5.4 - usbserial kernel module  usbserial kernel module; USB Serial Driver core
kernel-module-vivopay-serial - 3.9.6-r5.5.4 - vivopay-serial kernel module  vivopay-serial kernel module; ViVOpay USB
python-pickle - 2.7.12-r1 - Python serialisation/persistence support  The Python Programming
python3-pickle - 3.5.2-r1.0 - Python serialisation/persistence support  The Python Programming