1*641cc938SJiri OlsaWhere: /sys/bus/event_source/devices/<dev>/format 2*641cc938SJiri OlsaDate: January 2012 3*641cc938SJiri OlsaKernel Version: 3.3 4*641cc938SJiri OlsaContact: Jiri Olsa <jolsa@redhat.com> 5*641cc938SJiri OlsaDescription: 6*641cc938SJiri Olsa Attribute group to describe the magic bits that go into 7*641cc938SJiri Olsa perf_event_attr::config[012] for a particular pmu. 8*641cc938SJiri Olsa Each attribute of this group defines the 'hardware' bitmask 9*641cc938SJiri Olsa we want to export, so that userspace can deal with sane 10*641cc938SJiri Olsa name/value pairs. 11*641cc938SJiri Olsa 12*641cc938SJiri Olsa Example: 'config1:1,6-10,44' 13*641cc938SJiri Olsa Defines contents of attribute that occupies bits 1,6-10,44 of 14*641cc938SJiri Olsa perf_event_attr::config1. 15