如何导出结构成员

Question

我想知道如何在我的driver / driver.c中访问name成员 这是来自include / linux / cpufreq.h的代码

struct cpufreq_governor {
    char    name[CPUFREQ_NAME_LEN];
    int     (*governor) (struct cpufreq_policy *policy,
                 unsigned int event);
    ssize_t (*show_setspeed)    (struct cpufreq_policy *policy,
                     char *buf);
    int     (*store_setspeed)   (struct cpufreq_policy *policy,
                     unsigned int freq);
    unsigned int max_transition_latency; /* HW must be able to switch to
            next freq faster than this value in nano secs or we
            will fallback to performance governor */
    struct list_head    governor_list;
    struct module       *owner;
};

driver.c有一个依赖于活动调控器的函数。那么如何将它作为driver.c中的变量

Answer 1

Cpufreq导出符号cpufreq_get_policy，您可以使用该符号获取策略。 cpufreq_policy有一名成员governor。这就是你要找的东西。