From 3cce52e3615f20e6e9fac4a1b64e670e24d51253 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 22 Nov 2016 08:02:30 -0600
Subject: [PATCH] Update comments.

---
 examples/timer/timer_main.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/examples/timer/timer_main.c b/examples/timer/timer_main.c
index de2be590c..5e79e5d79 100644
--- a/examples/timer/timer_main.c
+++ b/examples/timer/timer_main.c
@@ -89,6 +89,15 @@ static volatile unsigned long g_nsignals;
 static void timer_sighandler(int signo, FAR siginfo_t *siginfo,
                              FAR void *context)
 {
+  /* Does nothing in this example except for increment a count of signals
+   * received.
+   *
+   * NOTE: The use of signal handler is not recommended if you are concerned
+   * about the signal latency.  Instead, a dedicated, high-priority thread
+   * that waits on sigwaitinfo() is recommended.  High priority is required
+   * if you want a deterministic wake-up time when the signal occurs.
+   */
+
   g_nsignals++;
 }