(在内核文件include/linux/platform_device.h中,定义了platform_device结构体)
注册设备的步骤:
1.在内核文件arch/arm/mach-exynos/mach-itop4412.c中注册平台设备结构体platform_device s3c_device_leds_ctl中
需要定义name、id等。在platform_device *smdk4×12_device[] __initdata中需要定义s3c_device_leds_ctl
2.保证.config中已经定义了宏定义
3.重新编译
(在内核文件include/linux/platform_device.h中,定义了int platform_driver_register(struct platform_driver *)函数和void platform_driver_unregister(struct platform_driver *)函数用于注册和卸载驱动)
定义了platform_driver结构体
struct platform_driver{ int (*probe)(struct platform_device *); int (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device *, pm_message_t state); int (*resume)(struct platform_device *); struct device_driver driver; const struct platform_device_id *id_table; }