fix focus/exposure issue
fix focus/exposure issue

zhukaixy/FastttCamera,emil-io/FastttCamera,hoanganh6491/FastttCamera,horaceho/FastttCamera,IFTTT/FastttCamera,ezrover/FastttCamera,iTA9178/FastttCamera,hanhailong/FastttCamera,dominiklessel/FastttCamera,sforteln/FastttCamera,tisohjung/FastttCamera,attheodo/FastttCamera