This is only useful for Linux kernels 5.11 and later - prior to that the clock source is fixed. The event clock source used by the kernel has changed over time as follows: Kernel VersionClock source pre-5.7 CLOC
The Adafruit HAT/Bonnet uses this library but a modified pinout to support other features on the HAT. You can choose the Adafruit pinout with a command line flag. Just pass the option--led-gpio-mapping=adafruit-hat. This works on the C++ and Python examples. ...
You can also move the second line of code to the ‘loop’ function so that it will be executed repeatedly and keep transmitting it. This is useful if you are monitoring something in real time such as voltage or a sensor reading.
upgrade to the 40-pin header we have today unleashed a few more precious interfaces, but even then it’s still possible to run out. This was the problem faced by [woj], who needed a PWM line to drive a cooling fan but whose other work had used everything on the header. The ...
pcf8563: add support for pcf8563 real time clock May 10, 2021 pcf8591 bugfix: correct casting of return value from adc as it was always ove… Oct 29, 2024 pixel pixels: do more extensive testing for roundtrip bugs between Set and Get ...
Original file line numberDiff line numberDiff line change @@ -417,7 +417,7 @@ static void calculate_active_cs(const struct mcp2210_device *dev, 417 417 for (i = 0; i < MCP2210_NUM_PINS; ++i) { 418 418 pin_cfg = &dev->config->pins[i]; 419 419 if (pin_cfg->mode ==...
This sequence emulates a real console controller. The timing of the sequence is fixed and has been configured to match the behavior of the console. To replicate the "combo" functionality (i.e. playing a sequence of buttons in a deterministic order giving a result that is more interesting tha...
When done, release the lines by calling gpiod_line_release() and chips by calling gpiod_chip_close().Other APIs are provided for more advanced functions like setting pin modes for pullup or pulldown resistors or defining a callback function to be called when an event occurs, like the lev...
The character device brings in many new interesting features such as: polling for line events, finding GPIO chips and lines by name, changing & reading the values of multiple lines with a single ioctl (one context switch) and many more. In this presentation Bartosz will showcase the new ...
pigpio is a C library for the Raspberry which allows control of the General Purpose Input Outputs (GPIO). - pigpio/pigpio.py at master · joan2937/pigpio