From cc263e257986b79444fa482bae17c4449fc71d37 Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <jakob@collabora.com>
Date: Mon, 22 May 2023 22:30:28 +0100
Subject: [PATCH] d/wmr: Try to set realtime priority on USB thread

---
 src/xrt/drivers/wmr/wmr_hmd.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/xrt/drivers/wmr/wmr_hmd.c b/src/xrt/drivers/wmr/wmr_hmd.c
index 26d3e93ad..d88228a58 100644
--- a/src/xrt/drivers/wmr/wmr_hmd.c
+++ b/src/xrt/drivers/wmr/wmr_hmd.c
@@ -38,6 +38,10 @@
 #include "util/u_distortion_mesh.h"
 #include "util/u_sink.h"
 
+#ifdef XRT_OS_LINUX
+#include "util/u_linux.h"
+#endif
+
 #include "tracking/t_tracking.h"
 
 #include "wmr_hmd.h"
@@ -646,10 +650,17 @@ control_read_packets(struct wmr_hmd *wh)
 static void *
 wmr_run_thread(void *ptr)
 {
-	U_TRACE_SET_THREAD_NAME("WMR: USB-HMD");
-
 	struct wmr_hmd *wh = (struct wmr_hmd *)ptr;
 
+	U_TRACE_SET_THREAD_NAME("WMR: USB-HMD");
+	os_thread_helper_name(&wh->oth, "WMR: USB-HMD");
+
+#ifdef XRT_OS_LINUX
+	// Try to raise priority of this thread.
+	u_linux_try_to_set_realtime_priority_on_thread(wh->log_level, "WMR: USB-HMD");
+#endif
+
+
 	os_thread_helper_lock(&wh->oth);
 	while (os_thread_helper_is_running_locked(&wh->oth)) {
 		os_thread_helper_unlock(&wh->oth);