what is the use or shutdown, suspend, resume.

[Mohamed Thalib <h.thalib@xxxxxxxxx>]

Hi all,


   I just wanted to know what is the use of shutdown,suspend, resume in 
the driver ..my understanding is that are they called in the time of 
system shutdown and suspend / resume . for example i have taken the 
following structure form include/linux/platform_device.h file as below.



struct platform_driver {
       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 (*suspend_late)(struct platform_device *, pm_message_t state);
       int (*resume_early)(struct platform_device *);
       int (*resume)(struct platform_device *);
       struct device_driver driver;
};


Regards,

Mohamed Thalib .H


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