in platform/posix/transport/src/mbedtls_pkcs11_posix.c [246:259]
static void mbedtlsDebugPrint( void * ctx,
int level,
const char * pFile,
int line,
const char * pStr )
{
/* Unused parameters. */
( void ) ctx;
( void ) pFile;
( void ) line;
/* Send the debug string to the portable logger. */
printf( "mbedTLS: |%d| %s", level, pStr );
}