struct rtc_device { struct device dev; struct module *owner; int id; //代表是那个rtc设备 char name[RTC_DEVICE_NAME_SIZE]; //代表rtc设备的名称 const struct rtc_class_ops *ops; //rtc操作函数集,需要驱动实现 struct mutex ops_lock; //操作函数集的互斥锁 struct cdev char_dev; //代表rtc字...
* Returns the pointer to the new struct class device.*/structrtc_device *rtc_device_register(constchar*name,structdevice *dev,conststructrtc_class_ops *ops,structmodule *owner)staticintsnvs_rtc_probe(structplatform_device *pdev) { ... data->rtc = devm_rtc_device_register(&pdev->dev, p...
{structdevice dev;//代表是一个设备structmodule *owner;intid;//rtc设备编号charname[RTC_DEVICE_NAME_SIZE];//rtc设备的名称conststructrtc_class_ops *ops;//rtc操作函数集,由驱动程序实现structmutex ops_lock;//操作函数集的互斥锁structcdev char_dev;//cdev结构体,代表rtc是字符设备unsignedlongflags;//...
struct device dev; struct module *owner; int id; 设备编号 char name[RTC_DEVICE_NAME_SIZE]; const struct rtc_class_ops *ops; rtc设备低层操作接口; struct mutex ops_lock; struct cdev char_dev; RTC字符型设备结构; unsigned long flags; unsigned long irq_data; 中断数据; spinlock_t irq_lock;...
struct rtc_device *rtc_device_register(const char *name, struct device *dev, const struct rtc_class_ops *ops, struct module *owner) { struct rtc_device *rtc; struct rtc_wkalrm alrm; int id, err; /* (1):处理一个idr的结构,idr在linux内核中指的就是整数ID管理...
struct module *owner; int id; 设备编号 char name[RTC_DEVICE_NAME_SIZE]; const struct rtc_class_ops *ops; rtc设备低层操作接口; struct mutex ops_lock; struct cdev char_dev; RTC字符型设备结构; unsigned long flags; unsigned long irq_data; 中断数据; ...
.name = "s3c2410-rtc", //驱动名字 .owner = THIS_MODULE, //驱动模块 }, }; 当调用plat_driver_register()函数注册驱动以后,会触发平台设备和驱动的匹配函数platform_match()。匹配成功,则会调用平台驱动中的probe()函数,RTC实时时钟驱动中对应的函数就是s3c_rtc_probe()。主要任务有以下:(请参考下面源代...
structrtc_device{structdevicedev;/*设备*/structmodule*owner;intid;/*ID*/charname[RTC_DEVICE_NAME_SIZE];/*名字*/conststructrtc_class_ops*ops;/*RTC设备底层操作函数*/structmutexops_lock;structcdevchar_dev;/*字符设备*/unsignedlongflags;
Gives the previous focus owner, if any, focus. audioManager.abandonAudioFocus(audioFocusChangeListener) audioFocusChangeListener = null Log.d(TAG, "Abandoned audio focus for VOICE_CALL streams") audioManagerEvents = null Log.d(TAG, "AudioManager stopped") } /** Changes selection of the currently ...
在网络多媒体通话场景下,会议的参与者往往是用 SDP 协议来传递、协商媒体详细信息、网络地址和其他元数据。SDP 协议的全称是 session description protocol...