watchdog_ioctl_op(9)

🎀 NAME 🎀

hiii bestie 💖 this is the Kernel API Manual page for watchdog_ioctl_op(9), and it’s literally here to call the watchdog drivers ioctl op if defined. no cap, that’s the whole name vibe 🐶✨

🦋 SYNOPSIS 🦋

int watchdog_ioctl_op (struct watchdog_device *wdd , unsigned int cmd ,
       unsigned long arg );

🫶 ARGUMENTS 🫶

• wdd — the watchdog device to do the ioctl on 🐾
• cmd — watchdog command 💫
• arg — argument pointer 🎯

🔒 DESCRIPTION 🔒

okay so the entire requirement is: the caller must hold wd_data->lock. no cap. hold the lock, bestie, or don’t come crying to me 😭🔐 periodt.

⭐ RETURN ⭐

It returns 0 if successful, and an error otherwise 💖 yes, iconic minimalism, we love to see it ✨

🌈 SEE ALSO 🌈

Kernel file ./drivers/watchdog/watchdog_dev.c is the spot, and here’s the whole bestie squad of related pages:

• watchdog_ping(9)
• watchdog_start(9)
• watchdog_stop(9)
• watchdog_get_status(9)
• watchdog_set_timeout(9)
• watchdog_set_pretimeout(9)
• watchdog_get_timeleft(9)
• watchdog_write(9)
• watchdog_ioctl(9)
• watchdog_open(9)
• watchdog_release(9)
• watchdog_cdev_register(9)
• watchdog_cdev_unregister(9)
• watchdog_dev_register(9)
• watchdog_dev_unregister(9)
• watchdog_set_last_hw_keepalive(9)
• watchdog_dev_init(9)
• watchdog_dev_exit(9)

okay bestie, that’s the whole page 💖 source/version: ./drivers/watchdog; date: October 2026; page: watchdog_ioctl_op(9) — mwah, go hold that lock 🫶✨