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This supports setting and reading the real time clock and supports wakeup alarms. To support wake up alarms you want this bootloader config: POWER_OFF_ON_HALT=1 WAKE_ON_GPIO=0 You can test with: echo +600 | sudo tee /sys/class/rtc/rtc0/wakealarm sudo halt That will halt (in an almost no power state), then wake and restart after 10 minutes. Signed-off-by: Dom Cobley <popcornmix@gmail.com> drivers: rtc-rpi: add battery charge circuit control and readback Parse devicetree for a charger voltage and apply it. If nonzero and a valid voltage, the firmware will enable charging, otherwise the charger circuit is disabled. Add sysfs attributes to read back the supported charge voltage range, the measured battery voltage, and the charger setpoint. Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
Linux kernel
There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first.
In order to build the documentation, use make htmldocs or
make pdfdocs. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
Build status for rpi-6.1.y:
Build status for rpi-6.6.y:
Build status for rpi-6.12.y:
