static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial, Error **errp) { #ifdef HAVE_CHARDEV_TTY int fd; fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); if (error_is_set(errp)) { return NULL; } qemu_set_nonblock(fd); return qemu_chr_open_tty_fd(fd); #else error_setg(errp, "character device backend type 'serial' not supported"); return NULL; #endif }