rtc: update documentation wrt RTC_PIE/irq_set_state

[mv-sheeva.git] / Documentation / rtc.txt

diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt
index 8deffcd68cb8d3fc2737279e780a28bee3726f57..102ce9625e65ee0dd9e3037b10b0fbdde26011f1 100644 (file)
--- a/Documentation/rtc.txt
+++ b/Documentation/rtc.txt
@@ -185,6 +185,8 @@ driver returns ENOIOCTLCMD.  Some common examples:
        hardware in the irq_set_freq function.  If it isn't, return -EINVAL.  If
        you cannot actually change the frequency, do not define irq_set_freq.
 
+    *  RTC_PIE_ON, RTC_PIE_OFF: the irq_set_state function will be called.
+
 If all else fails, check out the rtc-test.c driver!