1. platform总线两个最重要的结构体 platform维护的所有的驱动都必须要用该结构体定义: platform_driver struct platform_driver { int (*probe)(struct platform_device *); // int (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device...
/*兼容匹配表*/staticconststruct platform_device_id s3c24xx_serial_driver_ids[]={{.name="s3c2410-uart",.driver_data=S3C2410_SERIAL_DRV_DATA,},{.name="s3c2412-uart",.driver_data=S3C2412_SERIAL_DRV_DATA,},{.name="s3c2440-uart",.driver_data=S3C2440_SERIAL_DRV_DATA,},{.name="s3c6400...
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...
structplatform_driver {int(*probe)(structplatform_device *);int(*remove)(structplatform_device *);void(*shutdown)(structplatform_device *);int(*suspend)(structplatform_device *, pm_message_t state);int(*suspend_late)(structplatform_device *, pm_message_t state);int(*resume_early)(structpl...
struct device 下面是一个platform_device的实例。 staticstructplatform_device demo_device = { .name="demo", .id= -1, .dev= { .platform_data= &priv, .release=dev_release, }, .num_resources=ARRAY_SIZE(res), .resource=res, }; (2)struct resource ...
voidplatform_driver_unregister(structplatform_driver*drv) 函数参数和返回值含义如下: - drv:要卸载的platform驱动。 - 返回值:无。 platform驱动框架如下所示: 示例代码34.2.2.5platform驱动框架/* 设备结构体 */1structxxx_dev{2structcdevcdev;3/* 设备结构体其他具体内容 */4};56structxxx_devxxxdev;/* ...
static struct platform_device leddevice = { .name = "imx6ul-led", .id = -1, .dev = { .release = &led_release, }, .num_resources = ARRAY_SIZE(led_resources), .resource = led_resources, }; /* 设备模块加载 */ static int __init leddevice_init(void) { ...
Linux作为一种开源的操作系统,其庞大的用户群体和广泛的应用范围使得其在各个领域都有着重要的地位。在Linux,platform总线由内核进行统一管理,在驱动中使用资源,提高了代码的安全性和可移植性。由此,platform总线是学习linux驱动必须要掌握的一个知识点。下面我们将详
与传统的bus/device/driver机制相比,platform由内核进行统一管理,在驱动中使用资源,提高了代码的安全性和可移植性。 二、platform1. platform总线两个最重要的结构体 platform维护的所有的驱动都必须要用该结构体定义: platform_driverstruct platform_driver { ...
.name = "s3c2410-wdt",//name要与platform_driver中的name一致 .id = -1, .num_resources = ARRAY_SIZE(s3c_wdt_resource), .resource = s3c_wdt_resource, }; static struct platform_device *smdk2440_devices[] __initdata = { &s3c_device_usb, ...