CX18_DBGFLG_API
#define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args)
#define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args)
CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args)
if (!(cx18_debug & CX18_DBGFLG_API))
if (cx18_debug & CX18_DBGFLG_API) { /* only call u32arr2hex if needed */