From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径

---
 kernel/Documentation/ABI/testing/rtc-cdev |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/kernel/Documentation/ABI/testing/rtc-cdev b/kernel/Documentation/ABI/testing/rtc-cdev
index 9744728..25910c3 100644
--- a/kernel/Documentation/ABI/testing/rtc-cdev
+++ b/kernel/Documentation/ABI/testing/rtc-cdev
@@ -33,6 +33,14 @@
 		  Requires a separate RTC_PIE_ON call to enable the periodic
 		  interrupts.
 
+		* RTC_VL_READ: Read the voltage inputs status of the RTC when
+		  supported. The value is a bit field of RTC_VL_*, giving the
+		  status of the main and backup voltages.
+
+		* RTC_VL_CLEAR: Clear the voltage status of the RTC. Some RTCs
+		  need user interaction when the backup power provider is
+		  replaced or charged to be able to clear the status.
+
 		The ioctl() calls supported by the older /dev/rtc interface are
 		also supported by the newer RTC class framework. However,
 		because the chips and systems are not standardized, some PC/AT

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