248     static usb_handle *usb = 0;  in open_device()  local
251     if(usb) return usb;  in open_device()
254         usb = usb_open(match_fastboot);  in open_device()
255         if(usb) return usb;  in open_device()
598 static int64_t get_target_sparse_limit(struct usb_handle *usb)  in get_target_sparse_limit()  argument
602     int status = fb_getvar(usb, response, "max-download-size");  in get_target_sparse_limit()
615 static int64_t get_sparse_limit(struct usb_handle *usb, int64_t size)  in get_sparse_limit()  argument
625             target_sparse_limit = get_target_sparse_limit(usb);  in get_sparse_limit()
645 static int needs_erase(usb_handle* usb, const char *part)  in needs_erase()  argument
650      return fb_format_supported(usb, part, NULL);  in needs_erase()
653 static int load_buf_fd(usb_handle *usb, int fd,  in load_buf_fd()  argument
667     limit = get_sparse_limit(usb, sz64);  in load_buf_fd()
687 static int load_buf(usb_handle *usb, const char *fname,  in load_buf()  argument
697     return load_buf_fd(usb, fd, buf);  in load_buf()
720 void do_flash(usb_handle *usb, const char *pname, const char *fname)  in do_flash()  argument
724     if (load_buf(usb, fname, &buf)) {  in do_flash()
739 void do_update(usb_handle *usb, const char *filename, int erase_first)  in do_update()  argument
771         int rc = load_buf_fd(usb, fd, &buf);  in do_update()
774         if (erase_first && needs_erase(usb, images[i].part_name)) {  in do_update()
805 void do_flashall(usb_handle *usb, int erase_first)  in do_flashall()  argument
823         if (load_buf(usb, fname, &buf)) {  in do_flashall()
829         if (erase_first && needs_erase(usb, images[i].part_name)) {  in do_flashall()
918 void fb_perform_format(usb_handle* usb,  in fb_perform_format()  argument
938     status = fb_getvar(usb, pType, "partition-type:%s", partition);  in fb_perform_format()
952     status = fb_getvar(usb, pSize, "partition-size:%s", partition);  in fb_perform_format()
986     if (load_buf_fd(usb, fd, &buf)) {  in fb_perform_format()
1126     usb_handle* usb = open_device();  in main()  local
1136             if (fb_format_supported(usb, argv[1], NULL)) {  in main()
1168             if (erase_first && needs_erase(usb, argv[1])) {  in main()
1171             fb_perform_format(usb, argv[1], 0, type_override, size_override);  in main()
1226             if (erase_first && needs_erase(usb, pname)) {  in main()
1229             do_flash(usb, pname, fname);  in main()
1246             do_flashall(usb, erase_first);  in main()
1250                 do_update(usb, argv[1], erase_first);  in main()
1253                 do_update(usb, "update.zip", erase_first);  in main()
1283         fb_perform_format(usb, "userdata", 1, NULL, NULL);  in main()
1285         fb_perform_format(usb, "cache", 1, NULL, NULL);  in main()
1298     status = fb_execute_queue(usb);  in main()