dmmp_context_userdata_get(3) Device Mapper Multipath API - libdmmp Manual NAME dmmp_context_userdata_get - Get user data pointer. SYNOPSIS void * dmmp_context_userdata_get (struct dmmp_context *ctx); ARGUMENTS ctx Pointer of 'struct dmmp_context'. If this pointer is NULL, your program will be terminated by assert. DESCRIPTION Retrieve user data pointer from 'struct dmmp_context'. RETURN void *. Pointer of user defined data. March 2018 dmmp_context_userdata_get dmmp_context_userdata_get(3)