Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::sock_fam_str2num - Given a protocol family name (string), return the corresponding protocol
family number
SYNOPSIS
sock_fam_str2num:long(family:string)
ARGUMENTS
family
The family name
SystemTap Tapset Reference March 2016 FUNCTION::SOCK_FAM_S(3stap)