isdn_audio_data_t 422 include/linux/isdn.h #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count) isdn_audio_data_t 423 include/linux/isdn.h #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock)