Embedded linux on Small Remote Controller(Palm Pilot of Hover Camera 2). Design and implement sensor service for integrating barometer, magnetometer, IMU and GPS. Firmware size and memory usage tuning. Integrate third party MP3 decoder to system. Develop firmware update program. On device manufacturer test program.

Android kernel EC driver development including touchpad and dock keyboard functions. Android hall sensor driver in kernel. Android touch driver porting. performance test on Android via SPECInt. Maintain EMMC/SD driver in android system. Modify android vold binary to support exfat/ntfs format of sdcard. Maintain/modify thermal setting in thermal daemon for android system. Add security key check for image of android system. Encrypt/decrypt android widevine/hdcp/voucher key for android system. Modify/Maintain key install tool for android system. TF701T- dock/pad EC(embadded chip) driver Nexus player - thermal daemon TF303K - touch and dock EC(embedded chip) driver ME103K - touch driver Z370KL - maintain eMMC driver Z301ML/Z301MFL - android/oem security functions Zenfone Ultra - maintain eMMC driver Zenfone AR - DayDream feature in power HAL V500KL - security feature ZS630KL - security feature