added PocketChip pins

[linux-gpio-pinout] / README.md

diff --git a/README.md b/README.md
index dc2adcc..fe50d98 100644 (file)
--- a/README.md
+++ b/README.md
@@ -16,4 +16,19 @@ https://elinux.org/images/d/dc/Elce_2017_dt_bof.pdf
 
 device-tree/ directory contains examples
 
+to use device trees, do something like:
+
+       vi device-tree/gpio-leds.dts
+       armbian-add-overlay device-tree/gpio-led.dts
+       dmesg -w &
+       ./overlay-load.sh /boot/overlay-user/gpio-led.dtbo
+
+
+To load kernel module for i2c sensors without writing device tree
+echo module_name address into i2c bus:
+
+echo lm75 0x49 > /sys/bus/i2c/devices/i2c-1/new_device
+
+
+
 i2c-usersapce/ contains random i2c userspace device drivers