1 What: /sys/class/rtc/
2 Date: March 2006
3 KernelVersion: 2.6.17
4 Contact: linux-rtc@vger.kernel.org
5 Description:
6 The rtc/ class subdirectory be
7
8 What: /sys/class/rtc/rtcX/
9 Date: March 2006
10 KernelVersion: 2.6.17
11 Contact: linux-rtc@vger.kernel.org
12 Description:
13 The /sys/class/rtc/rtc{0,1,2,3
14 to each RTC device.
15
16 What: /sys/class/rtc/rtcX/date
17 Date: March 2006
18 KernelVersion: 2.6.17
19 Contact: linux-rtc@vger.kernel.org
20 Description:
21 (RO) RTC-provided date in YYYY
22
23 What: /sys/class/rtc/rtcX/hctosys
24 Date: September 2009
25 KernelVersion: 2.6.32
26 Contact: linux-rtc@vger.kernel.org
27 Description:
28 (RO) 1 if the RTC provided the
29 CONFIG_RTC_HCTOSYS kernel opti
30
31 What: /sys/class/rtc/rtcX/max_user_f
32 Date: October 2007
33 KernelVersion: 2.6.24
34 Contact: linux-rtc@vger.kernel.org
35 Description:
36 (RW) The maximum interrupt rat
37 from this RTC.
38
39 What: /sys/class/rtc/rtcX/name
40 Date: March 2006
41 KernelVersion: 2.6.17
42 Contact: linux-rtc@vger.kernel.org
43 Description:
44 (RO) The name of the RTC corre
45
46 What: /sys/class/rtc/rtcX/range
47 Date: January 2018
48 KernelVersion: 4.16
49 Contact: linux-rtc@vger.kernel.org
50 Description:
51 Valid time range for the RTC,
52 as [min, max]
53
54 What: /sys/class/rtc/rtcX/since_epoc
55 Date: March 2006
56 KernelVersion: 2.6.17
57 Contact: linux-rtc@vger.kernel.org
58 Description:
59 (RO) RTC-provided time as the
60
61 What: /sys/class/rtc/rtcX/time
62 Date: March 2006
63 KernelVersion: 2.6.17
64 Contact: linux-rtc@vger.kernel.org
65 Description:
66 (RO) RTC-provided time in 24-h
67
68 What: /sys/class/rtc/rtcX/offset
69 Date: February 2016
70 KernelVersion: 4.6
71 Contact: linux-rtc@vger.kernel.org
72 Description:
73 (RW) The amount which the rtc
74 firmware. Visible only if the
75 adjustment. The unit is parts
76 clock ticks which are added to
77 clock per billion ticks. A pos
78 slowly, longer, and a negative
79 quickly.
80
81 What: /sys/class/rtc/rtcX/wakealarm
82 Date: February 2007
83 KernelVersion: 2.6.20
84 Contact: linux-rtc@vger.kernel.org
85 Description:
86 (RW) The time at which the clo
87 event. This is a one shot wake
88 wake if a daily wakeup is requ
89 epoch by default, or if there'
90 future, or if there is a leadi
91 current alarm.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.