zoukankan      html  css  js  c++  java
  • struct platform_device中的id成员

    include/linux/platform_device.h

    #define PLATFORM_DEVID_NONE    (-1)
    #define PLATFORM_DEVID_AUTO    (-2)
    
    
    drivers/base/platform.c

    /*
    * * platform_device_add - add a platform device to device hierarchy * @pdev: platform device we're adding * * This is part 2 of platform_device_register(), though may be called * separately _iff_ pdev was allocated by platform_device_alloc(). */ int platform_device_add(struct platform_device *pdev) { int i, ret; if (!pdev) return -EINVAL; if (!pdev->dev.parent) pdev->dev.parent = &platform_bus; pdev->dev.bus = &platform_bus_type; switch (pdev->id) { default: dev_set_name(&pdev->dev, "%s.%d", pdev->name, pdev->id); break; case PLATFORM_DEVID_NONE: dev_set_name(&pdev->dev, "%s", pdev->name); break; case PLATFORM_DEVID_AUTO: /* * Automatically allocated device ID. We mark it as such so * that we remember it must be freed, and we append a suffix * to avoid namespace collision with explicit IDs. */ ret = ida_simple_get(&platform_devid_ida, 0, 0, GFP_KERNEL); if (ret < 0) goto err_out; pdev->id = ret; pdev->id_auto = true; dev_set_name(&pdev->dev, "%s.%d.auto", pdev->name, pdev->id); break; }
  • 相关阅读:
    Mysql如何修改unique key
    centos 编译 安装 protobuf
    EasyNetQ简单使用
    微信发送模板消息
    Python删除开头空格
    代码积累-Common
    sql With(NoLock),With(ReadPast)
    webform 使用log4net配置
    log4net.dll添加报错
    js-小数计算问题
  • 原文地址:https://www.cnblogs.com/baiyw/p/3572449.html
Copyright © 2011-2022 走看看