freebsd-skq/sys/dev/gpio
Michael Zhilin 662e30fca3 [gpioths] new driver for temperature/humidity sensor DHT11
This patch adds driver for temperature/humidity sensor connected via GPIO.
To compile it into kernel add "device gpioths". To activate driver, use
hints (.at and .pins) for gpiobus. As result it will provide temperature &
humidity values via sysctl.

DHT11 is cheap & popular temperature/humidity sensor used via GPIO on ARM
or MIPS devices like Raspberry Pi or Onion Omega.

Reviewed by:	adrian
Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D9185
2017-01-16 15:36:36 +00:00
..
bytgpio.c
gpio_if.m
gpiobacklight.c
gpiobus_if.m
gpiobus.c
gpiobusvar.h
gpioc.c Convert gpioc to use the make_dev_s(9) KPI. This fix a possible race where 2017-01-08 20:41:32 +00:00
gpioiic.c
gpiokeys_codes.c
gpiokeys.c
gpiokeys.h
gpioled_fdt.c
gpioled.c
gpiopower.c
gpiopps.c
gpioregulator.c
gpiospi.c [gpiospi] add clock delay to avoid smashing of bits 2016-12-13 10:03:29 +00:00
gpioths.c [gpioths] new driver for temperature/humidity sensor DHT11 2017-01-16 15:36:36 +00:00
ofw_gpiobus.c Only write to *active once, even when GPIO_ACTIVE_LOW is set. 2017-01-07 22:55:23 +00:00