From e66c47fb14f56be48366d1206b54724ab6dc2502 Mon Sep 17 00:00:00 2001 From: Mathias Kresin Date: Thu, 21 Dec 2017 01:06:42 +0100 Subject: [PATCH] base-files: gpio switch: set output value with direction Use the "low" and "high" values to configure the GPIO as an output with that initial value. It ensures that the gpio doesn't have a unwanted value during the time the direction is set to ouput and the actual value is applied. We don't need to take care of the GPIO polarity for now, since our exported GPIOs are always active low. Signed-off-by: Mathias Kresin --- package/base-files/Makefile | 2 +- package/base-files/files/etc/init.d/gpio_switch | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/package/base-files/Makefile b/package/base-files/Makefile index a7cc4ca48b..87e02ff7d2 100644 --- a/package/base-files/Makefile +++ b/package/base-files/Makefile @@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/version.mk include $(INCLUDE_DIR)/feeds.mk PKG_NAME:=base-files -PKG_RELEASE:=181 +PKG_RELEASE:=182 PKG_FLAGS:=nonshared PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/ diff --git a/package/base-files/files/etc/init.d/gpio_switch b/package/base-files/files/etc/init.d/gpio_switch index 5a62be94cc..b67950a992 100755 --- a/package/base-files/files/etc/init.d/gpio_switch +++ b/package/base-files/files/etc/init.d/gpio_switch @@ -22,10 +22,9 @@ load_gpio_switch() echo "$gpio_pin" >/sys/class/gpio/export # we need to wait a bit until the GPIO appears [ -d "$gpio_path" ] || sleep 1 - echo out >"$gpio_path/direction" } - # write 0 or 1 to the "value" field - { [ "$value" = "0" ] && echo "0" || echo "1"; } >"$gpio_path/value" + # set the pin to output with high or low pin value + { [ "$value" = "0" ] && echo "high" || echo "low"; } >"$gpio_path/direction" } service_triggers() -- 2.30.2