CTAP_FRAME_INIT
fp->body.init.cmd == (CTAP_FRAME_INIT | CTAP_KEEPALIVE)));
fp->body.init.cmd = (CTAP_FRAME_INIT | cmd);
if (fp->cid != d->cid || fp->body.init.cmd != (CTAP_FRAME_INIT | cmd)) {
fp->body.init.cmd = CTAP_FRAME_INIT | cmd;
fp->body.init.cmd = CTAP_FRAME_INIT | cmd;