NAME

       nvme_get_ctrl_attr - Read controller sysfs attribute

SYNOPSIS

       char * nvme_get_ctrl_attr (nvme_ctrl_t c , const char *attr );

ARGUMENTS

       c           Controller instance

       attr        sysfs attribute name

RETURN

       String  with the contents of attr or NULL in case of an empty value or in case of an error
       (indicated by non-zero errno code).