aw21024 led 驱动芯片驱动代码 （嵌入式开发 ）

menuconfig 中搜索 CONFIG_EXAMPLES_BUTTONS 选择（1）EXAMPLES_BUTTONS [=y] 开启， 然后选中（2）设置 button 节点的名字为(/dev/buttons) EXAMPLES_BUTTONS_DEVPATH [=/dev/buttons] 然后设置(5) Number of Buttons in the Board 为5 | +----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | | | --- Buttons driver example | | | | (buttons) Program name | | | | (100) Button task priority | | | | (4096) Button stack size | | | | (/dev/buttons) Button device path | | | | [*] Show Buttons Names | | | | Notification mechanism (Notify using signals) ---> | | | | (5) Number of Buttons in the Board | | | | (BUTTON0) Button 0 Name | | | | (BUTTON1) Button 1 Name | | | | (BUTTON2) Button 2 Name | | | | (BUTTON3) Button 3 Name | | | | (BUTTON4) Button 4 Name | | | | (BUTTON5) Button 5 Name | | | | (BUTTON6) Button 6 Name | | | | (BUTTON7) Button 7 Name | | | | 重编译后运行buttons ，按下 按键会看到打印按键值