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pin control subsystem之 pinctrl_dev
阅读量:4152 次
发布时间:2019-05-25

本文共 1278 字,大约阅读时间需要 4 分钟。

 
/** * struct pinctrl_dev - pin control class device * @node: node to include this pin controller in the global pin controller list * @desc: the pin controller descriptor supplied when initializing this pin * controller * @pin_desc_tree: each pin descriptor for this pin controller is stored in * this radix tree * @gpio_ranges: a list of GPIO ranges that is handled by this pin controller, * ranges are added to this list at runtime * @dev: the device entry for this pin controller * @owner: module providing the pin controller, used for refcounting * @driver_data: driver data for drivers registering to the pin controller * subsystem * @p: result of pinctrl_get() for this device * @hog_default: default state for pins hogged by this device * @hog_sleep: sleep state for pins hogged by this device * @mutex: mutex taken on each pin controller specific action * @device_root: debugfs root for this device */struct pinctrl_dev { struct list_head node; struct pinctrl_desc *desc; struct radix_tree_root pin_desc_tree; struct list_head gpio_ranges; struct device *dev; struct module *owner; void *driver_data; struct pinctrl *p; struct pinctrl_state *hog_default; struct pinctrl_state *hog_sleep; struct mutex mutex;#ifdef CONFIG_DEBUG_FS struct dentry *device_root;#endif};
 
 

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