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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2018-01-12 02:00:21 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2018-01-12 02:20:40 +0300 |
| commit | 81fdc7afdd7dbf2fdd5139049b887121472015ef (patch) | |
| tree | aff14dcbaf8c6a8129bb3c4ad02134e141d203a9 /Documentation/ABI/testing/sysfs-class-rtc | |
| parent | db00d38e7b59ae913cfa10f1c40bf656a969fb82 (diff) | |
| download | linux-81fdc7afdd7dbf2fdd5139049b887121472015ef.tar.xz | |
Documentation: rtc: move sysfs documentation to ABI
The sysfs documentation should be located under Documentation/ABI.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-rtc')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-rtc | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-rtc b/Documentation/ABI/testing/sysfs-class-rtc new file mode 100644 index 000000000000..a19f5e2def3a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-rtc @@ -0,0 +1,89 @@ +What: /sys/class/rtc/ +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + The rtc/ class subdirectory belongs to the RTC subsystem. + +What: /sys/class/rtc/rtcX/ +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + The /sys/class/rtc/rtc{0,1,2,3,...} directories correspond + to each RTC device. + +What: /sys/class/rtc/rtcX/date +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + RTC-provided date in YYYY-MM-DD format + +What: /sys/class/rtc/rtcX/hctosys +Date: September 2009 +KernelVersion: 2.6.32 +Contact: linux-rtc@vger.kernel.org +Description: + 1 if the RTC provided the system time at boot via the + CONFIG_RTC_HCTOSYS kernel option, 0 otherwise + +What: /sys/class/rtc/rtcX/max_user_freq +Date: October 2007 +KernelVersion: 2.6.24 +Contact: linux-rtc@vger.kernel.org +Description: + The maximum interrupt rate an unprivileged user may request + from this RTC. + +What: /sys/class/rtc/rtcX/name +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + The name of the RTC corresponding to this sysfs directory + +What: /sys/class/rtc/rtcX/since_epoch +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + RTC-provided time as the number of seconds since the epoch + +What: /sys/class/rtc/rtcX/time +Date: March 2006 +KernelVersion: 2.6.17 +Contact: linux-rtc@vger.kernel.org +Description: + RTC-provided time in 24-hour notation (hh:mm:ss) + +What: /sys/class/rtc/rtcX/*/nvmem +Date: February 2016 +KernelVersion: 4.6 +Contact: linux-rtc@vger.kernel.org +Description: + The non volatile storage exported as a raw file, as described in + Documentation/nvmem/nvmem.txt + +What: /sys/class/rtc/rtcX/offset +Date: February 2016 +KernelVersion: 4.6 +Contact: linux-rtc@vger.kernel.org +Description: + The amount which the rtc clock has been adjusted in firmware. + Visible only if the driver supports clock offset adjustment. + The unit is parts per billion, i.e. The number of clock ticks + which are added to or removed from the rtc's base clock per + billion ticks. A positive value makes a day pass more slowly, + longer, and a negative value makes a day pass more quickly. + +What: /sys/class/rtc/rtcX/wakealarm +Date: February 2007 +KernelVersion: 2.6.20 +Contact: linux-rtc@vger.kernel.org +Description: + The time at which the clock will generate a system wakeup event. + This is a one shot wakeup event, so must be reset after wake if + a daily wakeup is required. Format is seconds since the epoch by + default, or if there's a leading +, seconds in the future, or if + there is a leading +=, seconds ahead of the current alarm. |