bt_put_le16(desc->cccd_value, buf);
wrlen = sr_bt_char_write_req(desc, desc->cccd_handle, buf, sizeof(buf));
if (wrlen != sizeof(buf))
bt_put_le16(desc->cccd_value, buf);
wrlen = sr_bt_char_write_req(desc, desc->cccd_handle, buf, sizeof(buf));
if (wrlen != sizeof(buf))