Christoph Winklhofer a3c0880436 w1: add UART w1 bus driver ... Add a UART 1-Wire bus driver. The driver utilizes the UART interface via the Serial Device Bus to create the 1-Wire timing patterns. The driver was tested on a "Raspberry Pi 3B" with a DS18B20 and on a "Variscite DART-6UL" with a DS18S20 temperature sensor. The 1-Wire timing pattern and the corresponding UART baud-rate with the interpretation of the transferred bytes are described in the document: Link: https://www.analog.com/en/technical-articles/using-a-uart-to-implement-a-1wire-bus-master.html In short, the UART peripheral must support full-duplex and operate in open-drain mode. The timing patterns are generated by a specific combination of baud-rate and transmitted byte, which corresponds to a 1-Wire read bit, write bit or reset. Signed-off-by: Christoph Winklhofer <cj.winklhofer@gmail.com> Link: https://lore.kernel.org/r/20240214-w1-uart-v7-3-6e21fa24e066@gmail.com [krzysztof: w1_uart_serdev_receive_buf() return type fixup] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>		2024-02-15 15:02:33 +01:00
..
ds2482.rst	docs: w1: convert to ReST and add to the kAPI group of docs	2019-07-31 14:16:17 -06:00
ds2490.rst	Documentation: W1: minor typo corrections	2022-09-27 13:21:44 -06:00
index.rst	w1: add UART w1 bus driver	2024-02-15 15:02:33 +01:00
mxc-w1.rst	docs: w1: convert to ReST and add to the kAPI group of docs	2019-07-31 14:16:17 -06:00
omap-hdq.rst	docs: w1: Fix a typo in omap-hdq.rst	2019-12-30 11:58:02 -07:00
w1-gpio.rst	dt-bindings: w1: update w1-gpio.yaml reference	2021-09-16 21:02:09 -05:00
w1-uart.rst	w1: add UART w1 bus driver	2024-02-15 15:02:33 +01:00