This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| echo "scale=2; -45 + 175*$(cat /sys/class/sensor/sht31/temperature)/65535" | bc | |
| echo "scale=2; 100*$(cat /sys/class/sensor/sht31/humidity)/65535" | bc |
sepfy
/ sht31-driver.c
Created
September 20, 2020 04:02
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| int val = 0; | |
| int temp, humi; | |
| u8 bytes[6] = {0}; | |
| const u8 cmd[6] = {0}; | |
| u32 s; | |
| printk("[%s][%d]\n", __func__, __LINE__); | |
| s = i2c_smbus_write_i2c_block_data(i2c_client, 0x24, 1, cmd); | |
| if(s < 0) { |
sepfy
/ iothub_client_device_twin_and_methods_sample.c
Last active
September 12, 2020 11:32
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| ... | |
| //char* reportedProperties = serializeToJson(&car); | |
| char reportedProperties[512]; | |
| sprintf(reportedProperties, "{\"temperature\": 27.6, \"humidity\": 67.3}"); | |
| if (reportedProperties != NULL) | |
| { | |
| (void)IoTHubDeviceClient_LL_SendReportedState(iotHubClientHandle, (const unsigned char*)reportedProperties, strlen(reportedProperties), reportedStateCallback, NULL); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Check gpio usage | |
| mount -t debugfs debugfs /sys/kernel/debug | |
| cat /sys/kernel/debug/gpio |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <linux/module.h> | |
| #include <linux/device.h> | |
| #include <linux/err.h> | |
| int value = 0; | |
| static ssize_t attr_store(struct device *dev, | |
| struct device_attribute *attr, | |
| const char *buf, size_t count) | |
| { |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| PWD := $(shell pwd) | |
| KVERSION := $(shell uname -r) | |
| KERNEL_DIR = /usr/src/linux-headers-$(KVERSION)/ | |
| MODULE_NAME = mydev | |
| obj-m := $(MODULE_NAME).o | |
| all: | |
| make -C $(KERNEL_DIR) M=$(PWD) modules | |
| clean: |
sepfy
/ CMakeLists.txt
Last active
August 18, 2020 07:17
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| cmake_minimum_required(VERSION 3.1) | |
| project(func) | |
| add_library(func func.c) | |
| option(UNITTEST_ENABLE "Build the unittest code" OFF) | |
| file(GLOB func_SRC "*.c") | |
| file(GLOB unittest_SRC "*unittest*") |
sepfy
/ CMakeLists.txt
Last active
August 18, 2020 07:11
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| cmake_minimum_required(VERSION 3.1) | |
| project(app) | |
| file(GLOB APP_SOURCES "*.c") | |
| foreach(sourcefile ${APP_SOURCES}) | |
| string(REPLACE ".c" "" appname ${sourcefile}) | |
| string(REPLACE "${PROJECT_SOURCE_DIR}/" "" appname ${appname}) | |
| add_executable(${appname} ${sourcefile}) | |
| endforeach(sourcefile ${APP_SOURCES}) |
sepfy
/ CMakeLists.txt
Created
August 18, 2020 07:10
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Execute command | |
| execute_process(COMMAND echo -e "\\033[0;33mHello command\\033[0m") |
sepfy
/ CMakeLists.txt
Created
August 18, 2020 07:09
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| cmake_minimum_required(VERSION 3.1) | |
| project(samples) | |
| add_subdirectory(func) | |
| add_executable(main main.c) | |
| # Install target | |
| install(TARGETS main | |
| DESTINATION ${CMAKE_INSTALL_PREFIX}/bin/ | |
| ) |