STRUCT PINCONF_OPS(9)

hey bestie!! welcome to the struct pinconf_ops(9) page from the Kernel API Manual 💖✨ this one is literally the pin config operations struct, and it’s giving “drivers with pin configuration superpowers, come implement me” energy. no cap.

🌸 NAME 🌸

struct pinconf_ops — the pin config operations hookup, to be implemented by pin configuration capable drivers. 💅

✨ SYNOPSIS ✨

       struct pinconf_ops {
         #ifdef CONFIG_GENERIC_PINCONF;
           bool is_generic;
         #endif;
           int (*pin_config_get) (struct pinctrl_dev *pctldev, unsigned int
       pin, unsigned long *config);
           int (*pin_config_set) (struct pinctrl_dev *pctldev, unsigned int
       pin, unsigned long *configs, unsigned int num_configs);
           int (*pin_config_group_get) (struct pinctrl_dev *pctldev, unsigned
       int selector, unsigned long *config);
           int (*pin_config_group_set) (struct pinctrl_dev *pctldev, unsigned
       int selector, unsigned long *configs, unsigned int num_configs);
           void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev, struct
       seq_file *s, unsigned int offset);
           void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
       struct seq_file *s, unsigned int selector);
           void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
       struct seq_file *s, unsigned long config);
        };

🎀 Members 🎀

okay so here’s the member-by-member vibe check, and yes every single one matters:

• is_generic — for pin controllers that wanna use the generic interface, this flag tells the framework that it’s generic. 🫶
• pin_config_get — get the config of a certain pin. if the requested config is not available on this controller, this should return -ENOTSUPP; and if it is available but disabled, it should return -EINVAL. periodt.
• pin_config_set — configure an individual pin. slay.
• pin_config_group_get — get configurations for an entire pin group; should return -ENOTSUPP and -EINVAL using the same rules as pin_config_get. iykyk.
• pin_config_group_set — configure all pins in a group. 💜
• pin_config_dbg_show — optional debugfs display hook that will provide per-device info for a certain pin in debugfs. no cap.
• pin_config_group_dbg_show — optional debugfs display hook that will provide per-device info for a certain group in debugfs. 🦋
• pin_config_config_dbg_show — optional debugfs display hook that will decode and display a driver’s pin configuration parameter. iconic.

💜 SEE ALSO 💜

Kernel file ./include/linux/pinctrl/pinconf.h — go read it bestie, it’s right there. 📚✨

cute sign-off time: source is ./include/linux/pinctrl, date is October 2026, and the page is struct pinconf_ops(9). mwah 💋✨