# \[PATCH\] perf\_event\_open.2: 4.9 PERF\_EVENT\_IOC\_SET\_DRV\_CONFIGS support

- From: Mathieu Poirier \<hidden\>
- Date: 2016-08-11 17:09:25 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/08/13329433
- Thread: https://ratatoskr.run/linux-api/2016/08/13329433/t.md

```text
This manpage patch relates to the addition of the
PERF_EVENT_IOC_SET_DRV_CONFIGS ioctl.

link: http://www.spinics.net/lists/kernel/msg2318998.html
Signed-off-by: Mathieu Poirier <redacted>
---
 man2/perf_event_open.2 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index 3c894ccd1209..315b6a91079a 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -2732,6 +2732,12 @@ The argument is a BPF program file descriptor that was created by
 a previous
 .BR bpf (2)
 system call.
+.TP
+.BR PERF_EVENT_IOC_SET_DRV_CONFIGS " (since Linux 4.9)"
+This makes it possible to pass configuration parameters to PMU drivers.
+Configuration parameters are specific to each drivers.
+
+The argument is a pointer to the desired configuration parameters.
 .SS Using prctl
 A process can enable or disable all the event groups that are
 attached to it using the
-- 
2.7.4
```