zynqmp_pm_debugfs_api_read(9)

💖 NAME 💖

zynqmp_pm_debugfs_api_read — debugfs read function. This one's straight out of the Kernel API Manual, and it's lowkey iconic: tiny little debugfs read helper energy 👑✨.

✨ SYNOPSIS ✨

okay bestie, here's the exact signature — no edits, no cap:

ssize_t zynqmp_pm_debugfs_api_read (struct file *file , char __user *ptr
, size_t len , loff_t *off );

🌸 ARGUMENTS 🌸

• file — User file 🗂️
• ptr — Requested pm_api_version string 🌈
• len — Length of the userspace buffer 📏
• off — Offset within the file 🎯

🎀 RETURN 🎀

Length of the version string on success else error code 💖. That means success = the version-string length, and anything else = an error code. Periodt.

🦋 SEE ALSO 🦋

Kernel file: ./drivers/firmware/xilinx/zynqmp-debug.c 👀

• zynqmp_pm_ioctl(9)
• zynqmp_pm_argument_value(9)
• get_pm_api_id(9)
• zynqmp_pm_debugfs_api_write(9)
• zynqmp_pm_api_debugfs_init(9)
• zynqmp_pm_api_debugfs_exit(9)

source/version: ./drivers/firmware/xilinx • date: October 2026 • page: zynqmp_pm_debugfs_api_read(9) — bye bestie, stay debugfs-y 🫶💜