原来是static DEVICE_ATTR(val, S_IRUGO | S_IWUSR, hello_val_show, hello_val_store); 的作用 原型是#define DEVICE_ATTR(_name, _mode, _show, _store) \ struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _
staticssize_t device_show(structdevice *dev,structdevice_attribute *attr,char*buf)//cat命令时,将会调用该函数 {returnbuf;}staticssize_t device_store(structdevice *dev,structdevice_attribute *attr,constchar*buf, size_t len)//echo命令时,将会调用该函数.{returnlen;}staticDEVICE_ATTR(my_device_tes...
原来是static DEVICE_ATTR(val, S_IRUGO | S_IWUSR, hello_val_show, hello_val_store); 的作用 原型是#define DEVICE_ATTR(_name, _mode, _show, _store) \ struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) 函数宏DEVICE_ATTR内封装的是__ATTR(_name,_mode,...
@@ -462,7 +462,7 @@ static ssize_t vendor_id_show(struct device *dev,return sysfs_emit(buf, "%08x", codec->vendor_id); } DEVICE_ATTR_RO(vendor_id); static DEVICE_ATTR_RO(vendor_id);static struct attribute *ac97_dev_attrs[] = { ...
static void __attribute__((used)) __do_global_ctors_aux (void) { func_ptr *p; for (p = __CTOR_END__ - 1; *p != (func_ptr) -1; p--) (*p) (); } 这里可以看到把.ctors中的函数作为一个函数指针进行遍历,所以那个初始化是会被执行到的。 4、谁来调用这个__do_global_ctors_aux...
Native侧如何引入头文件deviceinfo.h 如何在Native侧构建一个ArkTS对象 Native C++模版中,生成的so库的名称在哪里定义,需要与哪些内容保持一致 Native侧如何打印char指针 c++创建的(napi_create_object),或者作为参数传下来的js value,如果想持久持有,需要怎么做?以及怎么主动销毁或减少引用计数 在ArkTS层往C++...
Can a c# struct be serialized as a "value type" or just one of its properties? can a comma in xml attribute create any problelm. can a constructor return a value? can a Dictionary be the return type of a method? Can anyone explain clearly about FLOAT Vs DECIMAL Vs DOUBLE ? Can Dire...
(struct &0xd0feeaf8) , : mm_done, ev_error-->mm_bld_msg4, ev_group_lookup-->mm_bld_msg4, ev_test_cert-->mm_bld_msg4, ev_bld_msg4-->mm_bld_msg4, ev_test_crack-->mm_bld_msg4, ev_secret_key_ok-->mm_bld_msg4, nullevent-->mm_bld_msg4, ev_gen_secret_key dec 07...
Error "All objects added to an IDictionary must have a Key attribute" Error "Value '' could not be converted." Error in g.cs files Error when running XAML script with powershell error: A TwoWay or OneWayToSource binding cannot work on the read-only property? error: The property 'Content...
aws-iot-device-sdk aws-kcl aws-lambda-fastify aws-lambda-http-server aws-lambda aws-param-store aws-regions aws-sdk2-types aws-serverless-express aws-synthetics-puppeteer aws4 axe-webdriverjs axel axios-cancel axios-concurrency axios-curlirize axios-token-interceptor axon azdata azure-function...