STRUCT PSE_CONTROLLER_DEV(9)

💖 NAME 💖

struct pse_controller_dev — the PSE controller entity that might provide multiple PSE controls. Periodt. This page is living in the Kernel API Manual, and it's giving "one controller, multiple PSE controls" energy. Slay. 🦋

✨ SYNOPSIS ✨

Okay bestie, here's the struct in all its iconic, exact glory:

       struct pse_controller_dev {
           const struct pse_controller_ops *ops;
           struct module *owner;
           struct list_head list;
           struct list_head pse_control_head;
           struct device *dev;
           int of_pse_n_cells;
           unsigned int nr_lines;
           struct mutex lock;
           enum ethtool_pse_types types;
           struct pse_pi *pi;
           bool no_of_pse_pi;
           int irq;
           unsigned int pis_prio_max;
           u32 supp_budget_eval_strategies;
           struct work_struct ntf_work;
           struct pse_ntf *ntf_fifo;
           spinlock_t ntf_fifo_lock;
        };

🌸 Members 🌸

Vibe check on every single field, because they all matter, no cap:

• ops — a pointer to device specific struct pse_controller_ops. That's the ops hookup, iykyk. 👑
• owner — the kernel module of the PSE controller driver. Gotta know who owns it, fr fr. 🫶
• list — internal list of PSE controller devices. Lowkey the group chat of controllers. 💅
• pse_control_head — head of internal list of requested PSE controls. Head of the list, head of the class. 🎀
• dev — corresponding driver model device struct. The literal device bestie. 🌸
• of_pse_n_cells — number of cells in PSE line specifiers. Counting cells like it's a spreadsheet, periodt. ✨
• nr_lines — number of PSE controls in this controller device. That's the line count, bestie. 🔥
• lock — the mutex for serialization access to the PSE controller. She keeps things from getting messy. 💀
• types — types of the PSE controller. Plural types, plural vibes. 🌈
• pi — table of PSE PIs described in this controller device. Table? More like a whole roster. 👑
• no_of_pse_pi — flag set if the pse_pis devicetree node is not used. Not me checking devicetree nodes... 🙈
• irq — PSE interrupt. The interrupt queen herself. ⚡
• pis_prio_max — Maximum value allowed for the PSE PIs priority. Big priority energy. 💅
• supp_budget_eval_strategies — budget evaluation strategies supported by the PSE. Long name, main character responsibility. 😭
• ntf_work — workqueue for PSE notification management. Handling notifications like a boss. 🧚
• ntf_fifo — PSE notifications FIFO. First in, first out, iconic behavior. 🍓
• ntf_fifo_lock — protect ntf_fifo writer. Don't let those writers race, bestie. 🔒

🎀 SEE ALSO 🎀

Kernel file ./include/linux/pse-pd/pse.h is the source bestie, and here's the whole linked entourage:

• struct pse_irq_desc(9)
• struct pse_control_config(9)
• struct pse_admin_state(9)
• struct pse_pw_status(9)
• struct pse_ext_state_info(9)
• struct pse_pw_limit_ranges(9)
• struct ethtool_pse_control_status(9)
• struct pse_controller_ops(9)
• struct pse_pi_pairset(9)
• struct pse_pi(9)
• struct pse_ntf(9)
• enum pse_budget_eval_strategies(9)

Source/version: ./include/linux/pse-pd · date: October 2026 · page: struct pse_controller_dev(9) — that's the whole tea ☕, now go be the main character of your kernel docs 💜✨